Patent US1645923A successfully refreshed from Google Patents.
US1645923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aviation camera
Assignee: Eastman Kodak Co
•
Filing: 1924-01-08
•
Granted: 1927-10-18
•
Expires: 1944-01-08
Abstract
No abstract record available.
Inventors
- 👤 George H Ohlau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:38
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/56; G03B17/561; G03B17/563
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1930-10-17 | 1931-04-18 | 1931-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-10-17 | 1935-04-18 | 1935-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-10-17 | 1939-04-18 | 1939-10-18 | $7700.00 | Window Closed / Lapsed |