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US2909652A
Expired / Lapsed
US
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Spotlight projector
Assignee: Individual
•
Filing: 1958-08-01
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Granted: 1959-10-20
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Expires: 1978-08-01
Abstract
No abstract record available.
Inventors
- 👤 James A Pratt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:56
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1722975A
Cited
US1738944A
Cited
US1907750A
Cited
US2114963A
Cited
US2558964A
Cited
US2705278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |