Index tabs

Abstract

Set of ten strips of 10 two-digit color coded numerical indexing tabs, each strip comprising a backing of release paper and an overlying strip of transparent film having a coating of pressure-sensitive adhesive on its under surface mounted on the backing and cut transversely to devine ten individually separable tabs, the tabs of each strip being color coded by .[.reverse.]. printing the same first digit on each with ink of the same color and leaving a blank space on each tab directly adjacent the first digit, the overlying strip having a write-on upper surface coterminous with such blank spaces to enable selective application in each blank space of any desired digit for display with the adjacent first digit; only five different colors of ink being employed, each with one of the first five strips respectively displaying 0 through 4 as the first digit, and the second five strips respectively displaying 5 through 9 as the first digit, each with one of those five colors and with the printing being extended laterally of the tabs to outline the blank spaces; the longitudinal margins of each overlying strip comprising skirt portions on each tab applicable in use to opposed surfaces of a sheet to be indexed, means defining a fold line laterally across each tab to facilitate such mounting thereof, and the .[.reverse.]. printing extending on both sides of the fold line to enable three dimensional identification of the tabs as mounted in use.

I claim: 
     
       1. A strip of 10 two-digit color coded numerical indexing tabs, comprising a backing strip of release paper, an overlying strip of transparent film having a coating of pressure-sensitive adhesive on its under surface mounted on said backing strip and cut transversely to define ten individually separable tabs, said tabs being color coded by reverse printing the same first digit on each with ink of the same color and leaving a blank space on each tab directly adjacent said first digit, and said overlying strip having a write-on upper surface coterminous with said blank spaces to enable selective application in each sad blank space during use of any desired digit for display with the adjacent said first digit. 
     
     
       2. A strip of tabs according to claim 1, wherein the reverse printing of said first digit is extended longitudinally of said strip to outline said blank spaces on said tabs in lateral relationship thereon relative to their associated said first digit. 
     
     
       3. A strip of tabs according to claim 1, wherein the longitudinal margins of said overlying strip comprise skirt portions on each said tab applicable in use to opposed surfaces of a sheet to be indexed, means defining a fold line laterally across each said tab to facilitate such mounting thereof, and said reverse printing extending on both sides of said fold line to enable three dimensional identification of said tabs as mounted in use. 
     
     
       4. A set of ten strips of 10 two-digit color coded numerical indexing tabs with different said strips coded with different colors, each said strip comprising a backing strip of release paper, an overlying strip of transparent film having a coating of pressure-sensitive adhesive on its under surface mounted on said backing strip and cut transversely to define 10 individually separable tabs, said tabs being color coded by reverse printing the same first digit on each with ink of the same color and leaving a blank space on each tab directly adjacent said first digit, and said overlying strip having a write-on upper surface coterminous with said blank spaces to enable selective application in each said blank space during use of any desired digit for display with the adjacent said first digit. 
     
     
       5. A set of strips of tabs according to claim 4, wherein only five colors are employed, the first five of said strips respectively displaying 0 through 4 as said first digit, each said strip in a different said color, and the second five of said strips respectively displaying 5 through 9 as said first digit, each said strip in a different said color, with said printing of said second five strips being extended laterally of said tabs to outline said blank spaces. .Iadd. 6. A strip of 10 two-digit color coded numerical indexing tabs, comprising a backing strip of release paper, an overlying strip of transparent film having a coating of pressure-sensitive adhesive on its under surface mounted on said backing strip and cut transversely to define ten individually separable tabs, said tabs having the same first digit printed on each and leaving a blank space on each tab directly adjacent said first digit, said tabs being color coded by providing an identifying color portion on each of the same color, and said overlying strip having a write-on upper surface coterminous with said blank spaces to enable selective application in each said blank space during use of any desired digit for display with the adjacent said first digit..Iaddend. .Iadd. 7. A strip of tabs according to claim 6, wherein the longitudinal margins of said overlying strip comprise skirt portions on each said tab applicable in use to opposed surfaces of a sheet to be indexed, means defining a fold line laterally across each said tab to facilitate such mounting thereof, and said color identifying portion extending on both sides of said fold line to enable three dimensional identification of said tabs as mounted in use. .Iaddend. .Iadd. 8. A set of ten strips of 10 two-digit color coded numerical indexing tabs with different said strips coded with different colors, each said strip comprising a backing strip of release paper, an overlying strip of transparent film having a coating of pressure-sensitive adhesive on its under surface mounted on said backing strip and cut transversely to define 10 individually separable tabs, said tabs having the same first digit printed on each and leaving a blank space on each tab directly adjacent said first digit, said tabs being color coded by providing an identifying color portion on each of the same color, and said overlying strip having a write-on upper surface coterminous with said blank spaces to enable selective application in each said blank space during use of any desired digit for display with the adjacent said first digit.