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US2967578A
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US
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Suspension and drive mechanism for endless tread vehicles
Assignee: KRISTI CO
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Filing: 1957-03-04
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Granted: 1961-01-10
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Expires: 1977-03-04
Abstract
No abstract record available.
Inventors
- 👤 William H Schomers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:35
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/104; B62D55/116; B62D55/06; B62M; B62M27/00; B62M27/02; B62M2027/026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |