US3137350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power cultivator
Assignee: Individual
•
Filing: 1963-07-02
•
Granted: 1964-06-16
•
Expires: 1983-07-02
Abstract
No abstract record available.
Inventors
- 👤 Frances M Horr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:06
CPC Classifications
A; A01; A01B; A01B33/00; A01B33/02; A01B33/021; A01B59/00; A01B59/06; A01B71/00; A01B71/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE375412C
Cited
US1664789A
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GB420050A
Cited
US2182157A
Cited
US2319255A
Cited
US2317188A
Cited
US2366386A
Cited
US2364043A
Cited
US2616348A
Cited
US3071198A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |