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US2494043A
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Assignee: Individual
•
Filing: 1945-09-17
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Granted: 1950-01-10
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Expires: 1965-09-17
Abstract
No abstract record available.
Inventors
- 👤 Douglas L Jocelyn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:03
CPC Classifications
F; F25; F25C; F25C1/00; F25C1/22; F25C1/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1407614A
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US1909030A
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US1976147A
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US2063100A
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US2143108A
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US2389317A
Cited
US2367098A
Cited
US2415451A
Cited
US2433210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |