USB437894I5
Expired / Lapsed
US
⏱️ 0.0 years remaining
USB437894I5 - - Google Patents
Assignee: —
•
Filing: 1974-01-30
•
Granted: —
•
Expires: 1994-01-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:06
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/032; G03F7/033
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3036915A
Cited
US3740224A
Cited
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