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US2485143A
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US
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Assignee: Individual
•
Filing: 1946-08-06
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Granted: 1949-10-18
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Expires: 1966-08-06
Abstract
No abstract record available.
Inventors
- 👤 Theodore R Duncan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:47
CPC Classifications
A; A63; A63F; A63F3/00; A63F3/00003; A63F3/00094
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US40999A
Cited
US486308A
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US947603A
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US1510853A
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US1605703A
Cited
US2084912A
Cited
US2313473A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-17 | 1953-04-18 | 1953-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-17 | 1957-04-18 | 1957-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-17 | 1961-04-18 | 1961-10-18 | $7700.00 | Window Closed / Lapsed |