Patent US4946247A successfully refreshed from Google Patents.
Patent US3128833A successfully refreshed from Google Patents.
US3128833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planting and cultivating device
Assignee: —
•
Filing: —
•
Granted: 1964-04-14
•
Expires: 1981-04-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:20
CPC Classifications
A; A01; A01B; A01B63/00; A01B63/14; A01B63/16; A01B63/22; A01C; A01C5/00; A01C5/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
37 words
A SEED BED SHAPING DEVICE COMPRISING A MOBILE FRAME, AT LEAST TWO FURROW FORMING DEVICES ATTACHED TO SAID FRAME AT LATERALLY SPACED POINTS, AND BED FORMING MEANS REMOVABLY ATTACHED TO ADJACENT PORTIONS OF SAID FURROW FORMING DEVICES.
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) | 1967-04-14 | 1967-10-14 | 1968-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-14 | 1971-10-14 | 1972-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-14 | 1975-10-14 | 1976-04-14 | $7700.00 | Window Closed / Lapsed |