US2521743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pocket camera
Assignee: PERLIN DEV CORP
•
Filing: 1947-11-28
•
Granted: 1950-09-12
•
Expires: 1967-11-28
Abstract
No abstract record available.
Inventors
- 👤 Perlin Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:41
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/02; G03B17/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US517539A
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US546198A
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US615297A
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US687592A
Cited
US866257A
Cited
GB191018336A
Cited
US1070400A
Cited
US1215290A
Cited
US1955300A
Cited
US1957043A
Cited
US2083492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |