Patent US4075539A successfully refreshed from Google Patents.
Patent US2645169A successfully refreshed from Google Patents.
US2645169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-speed camera
Assignee: —
•
Filing: —
•
Granted: 1953-07-14
•
Expires: 1970-07-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:03
CPC Classifications
G; G03; G03B; G03B39/00; G03B39/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2259228A
Cited
US2394225A
Cited
US2551597A
Cited
US1252829A
Cited
US1536716A
Cited
FR796844A
Cited
US2167417A
Cited
US2372774A
Cited
US2353328A
Cited
US2477847A
Cited
US2505469A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |