Patent US3986219A successfully refreshed from Google Patents.
Patent US2461447A successfully refreshed from Google Patents.
US2461447A
Expired / Lapsed
US
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Yielding drive
Assignee: Individual
•
Filing: 1943-06-30
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Granted: 1949-02-08
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Expires: 1963-06-30
Abstract
No abstract record available.
Inventors
- 👤 Josephine M Siesel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:35
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/14; B25B23/141; F; F16; F16D; F16D7/00; F16D7/04; F16D7/048
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US458408A
Cited
US1962993A
Cited
US1895025A
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US2028441A
Cited
US2160611A
Cited
DE692761C
Cited
US2293786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-08 | 1952-08-09 | 1953-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-08 | 1956-08-09 | 1957-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-08 | 1960-08-09 | 1961-02-08 | $7700.00 | Window Closed / Lapsed |