US2659992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film mount
Assignee: Individual
•
Filing: 1948-03-15
•
Granted: 1953-11-24
•
Expires: 1968-03-15
Abstract
No abstract record available.
Inventors
- 👤 Paul G Kiehl
- 👤 Jr William H Kolath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:04
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US560080A
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US764273A
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US1464447A
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US1500025A
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US2014743A
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US2186643A
Cited
US2227986A
Cited
US2336196A
Cited
US2361479A
Cited
US2361670A
Cited
US2527765A
Cited
US2505250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-23 | 1957-05-25 | 1957-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-23 | 1961-05-25 | 1961-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-23 | 1965-05-25 | 1965-11-24 | $7700.00 | Window Closed / Lapsed |