Assignee
KEYSTONE LAMP MFG CORP
3 granted patents·32 citations·filing 1976–1983
Top patents by PatentIndex Score
3 records- 0157US4410932AElectric lampKEYSTONE LAMP MFG CORP·Filed 1981·Granted Oct 18, 1983·16 cites·13 claims
- 0239USD246397SCollapsible lamp shadeKEYSTONE LAMP MFG CORP·Filed 1976·Granted Nov 15, 1977·2 cites·1 claims
- 0334US4558893ANon-rotatable telescoping support structureKEYSTONE LAMP MFG CORP·Filed 1983·Granted Dec 17, 1985·14 cites·6 claims
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