US2834136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film mount
Assignee: Individual
•
Filing: 1953-10-30
•
Granted: 1958-05-13
•
Expires: 1973-10-30
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
2026-10-27 03:50
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE707500C
Cited
US2390053A
Cited
US2401598A
Cited
US2505250A
Cited
US2572735A
Cited
US2511651A
Cited
US2596667A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |