US2625072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for evaluation of photographic resolving power
Assignee: Technicolor Motion Picture Corp
•
Filing: 1949-03-09
•
Granted: 1953-01-13
•
Expires: 1969-03-09
Abstract
No abstract record available.
Inventors
- 👤 Lauriston E Clark
- 👤 Donald H Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:52
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2469935A
Cited
US1998461A
Cited
US2198971A
Cited
US2361447A
Cited
US2398238A
Cited
US2380244A
Cited
US2468690A
Cited
US2460060A
Cited
US2488430A
Cited
US2464892A
Cited
US2505316A
Cited
US2494441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-13 | 1956-07-14 | 1957-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-13 | 1960-07-14 | 1961-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-13 | 1964-07-14 | 1965-01-13 | $7700.00 | Window Closed / Lapsed |