USD243603SExpiredUtility
Educational chromatograph
Individually held — no corporate assignee on recordPriority: Sep 13, 1974Filed: Sep 13, 1974Granted: Mar 8, 1977
Est. expirySep 13, 1994(expired)· nominal 20-yr term from priority
Inventors:John P. Salsgiver
23
PatentIndex Score
1
Cited by
2
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for educational chromatograph, as shown and described.
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