US2633786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor mounted two-way plow
Assignee: Individual
•
Filing: 1948-08-14
•
Granted: 1953-04-07
•
Expires: 1968-08-14
Abstract
No abstract record available.
Inventors
- 👤 Harry A Pursche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:54
CPC Classifications
A; A01; A01B; A01B3/00; A01B3/36; A01B3/40; A01B3/42; A01B3/421; A01B3/46; A01B3/464
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1021117A
Cited
FR461267A
Cited
FR22598E
Cited
US1283679A
Cited
GB163473A
Cited
US1546844A
Cited
US1721456A
Cited
US2118181A
Cited
US2153824A
Cited
US2227366A
Cited
US2383689A
Cited
US2383386A
Cited
US2455727A
Cited
US2543786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |