US2683405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cultivator and bed shaver arrangement for tractors
Assignee: Allis Chalmers Corp
•
Filing: 1948-09-20
•
Granted: 1954-07-13
•
Expires: 1968-09-20
Abstract
No abstract record available.
Inventors
- 👤 Walter L Wiemerslage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:39
CPC Classifications
A; A01; A01B; A01B39/00; A01B39/12; A01B39/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB248933A
Cited
US1850717A
Cited
US1946403A
Cited
US2150665A
Cited
US2228172A
Cited
US2349343A
Cited
FR886890A
Cited
US2368312A
Cited
US2449159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-12 | 1958-01-11 | 1958-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-12 | 1962-01-11 | 1962-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-12 | 1966-01-11 | 1966-07-13 | $7700.00 | Window Closed / Lapsed |