US2812666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansible pulleys
Assignee: Individual
•
Filing: 1953-08-06
•
Granted: 1957-11-12
•
Expires: 1973-08-06
Abstract
No abstract record available.
Inventors
- 👤 William F Huck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:02
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/32; F16H55/52; F16H55/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2256114A
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US2135214A
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US2198314A
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US2310081A
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CH236705A
Cited
US2516829A
Cited
GB672599A
Cited
US2648988A
Cited
US2741135A
Cited
US2697361A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |