Patent US3451729A successfully refreshed from Google Patents.
US3451729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traction belt for low horsepower snow vehicles
Assignee: LES IND DE FIBRE DE VERRE DE THETFORD Inc
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Filing: 1966-12-06
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Granted: 1969-06-24
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Expires: 1986-12-06
Abstract
No abstract record available.
Inventors
- 👤 Paul E Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:43
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/18; B62D55/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US263566A
Cited
US2899242A
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US2290109A
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US2449421A
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US3011576A
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US3285677A
Cited
US3282630A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |