Patent US3113181A successfully refreshed from Google Patents.
Patent US3487726A successfully refreshed from Google Patents.
US3487726A
Expired / Lapsed
US
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Auxiliary overdrive gear
Assignee: Self Changing Gears Ltd
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Filing: 1967-06-28
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Granted: 1970-01-06
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Expires: 1987-06-28
Abstract
No abstract record available.
Inventors
- 👤 Stanley Frederick Burnett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:47
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/44; F16H3/46; F16H3/48; F16H3/52; F16H3/54; F16H61/00; F16H61/02; F16H61/0262; F16H2716/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB456007A
Cited
US2115964A
Cited
US2507050A
Cited
US2918832A
Cited
US2870655A
Cited
GB944038A
Cited
US3069929A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |