US2482115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical projector and system
Assignee: Individual
•
Filing: 1945-10-18
•
Granted: 1949-09-20
•
Expires: 1965-10-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph P Laird
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:14
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/30; G09B9/32; G02; G02B; G02B30/00; G02B30/50; G02B30/56; G09F; G09F19/00; G09F19/12; G09F19/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR400182A
Cited
US1874279A
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US1812110A
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US2081969A
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US2313204A
Cited
US2289877A
Cited
US2336436A
Cited
US2358316A
Cited
US2352101A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-19 | 1953-03-21 | 1953-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-19 | 1957-03-21 | 1957-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-19 | 1961-03-21 | 1961-09-20 | $7700.00 | Window Closed / Lapsed |