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US2477516A
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Assignee: Individual
•
Filing: 1945-05-18
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Granted: 1949-07-26
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Expires: 1965-05-18
Abstract
No abstract record available.
Inventors
- 👤 Paul C Haas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:35
CPC Classifications
F; F21; F21V; F21V23/00; F21V23/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1134977A
Cited
US1592225A
Cited
US1739788A
Cited
US1756733A
Cited
US2128427A
Cited
US2420585A
Cited
US2419180A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-25 | 1953-01-24 | 1953-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-25 | 1957-01-24 | 1957-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-25 | 1961-01-24 | 1961-07-26 | $7700.00 | Window Closed / Lapsed |