Patent US267197A successfully refreshed from Google Patents.
US3474751A
Expired / Lapsed
US
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Amphibious snow vehicle
Assignee: NANUK Inc
•
Filing: 1968-01-03
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Granted: 1969-10-28
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Expires: 1988-01-03
Abstract
No abstract record available.
Inventors
- 👤 Maurice E Hebert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:17
CPC Classifications
B; B60; B60F; B60F3/00; B60F3/0061; B60F3/0076; B62; B62M; B62M27/00; B62M27/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3263763A
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US3213821A
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US3362492A
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US3404745A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |