Patent US3461971A successfully refreshed from Google Patents.
US3461971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vyba mount
Assignee: American Tractor Equipment Corp
•
Filing: 1966-07-05
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Granted: 1969-08-19
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Expires: 1986-07-05
Abstract
No abstract record available.
Inventors
- 👤 Roger Sprenkel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:33
CPC Classifications
A; A01; A01B; A01B13/00; A01B13/08; A01B11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US267719A
Cited
CA722407A
Cited
GB175736A
Cited
CH115855A
Cited
US2410945A
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US2493811A
Cited
US2593679A
Cited
DE961768C
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FR1406175A
Cited
US3336082A
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DK57391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-18 | 1973-02-17 | 1973-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-18 | 1977-02-17 | 1977-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-18 | 1981-02-17 | 1981-08-19 | $7700.00 | Window Closed / Lapsed |