US2500782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic printing frame
Assignee: Airequipt Manufacturing Co Inc
•
Filing: 1946-08-13
•
Granted: 1950-03-14
•
Expires: 1966-08-13
Abstract
No abstract record available.
Inventors
- 👤 Carl H Wiklund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:32
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US43831A
Cited
DE476202C
Cited
US1352615A
Cited
US1434455A
Cited
US1743310A
Cited
US1818528A
Cited
US1902277A
Cited
FR765715A
Cited
US2251184A
Cited
US2199305A
Cited
US2236197A
Cited
US2418226A
Cited
US2441843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |