Patent US2659992A successfully refreshed from Google Patents.
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
2026-10-30 15:23
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/64
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US560080A
Cited
US764273A
Cited
US1464447A
Cited
US1500025A
Cited
US2014743A
Cited
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 |