Patent US1922537A successfully refreshed from Google Patents.
US1922537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable mount for projecting lenses
Assignee: PROJECTION OPTICS CO
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Filing: 1929-09-05
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Granted: 1933-08-15
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Expires: 1949-09-05
Abstract
No abstract record available.
Inventors
- 👤 William F Fouquet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:57
CPC Classifications
G; G02; G02B; G02B15/00; G02B15/14; G02B15/142
Claims Analysis
Total Claims: 0
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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) | 1936-08-14 | 1937-02-13 | 1937-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-08-14 | 1941-02-13 | 1941-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-08-14 | 1945-02-13 | 1945-08-15 | $7700.00 | Window Closed / Lapsed |