US2718185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary cultivator shield
Assignee: Individual
•
Filing: 1952-07-08
•
Granted: 1955-09-20
•
Expires: 1972-07-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Ralph P Shawd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:36
CPC Classifications
A; A01; A01B; A01B39/00; A01B39/20; A01B39/26
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US795429A
Cited
US892465A
Cited
US882667A
Cited
US1453891A
Cited
US1563291A
Cited
US1835095A
Cited
US1880584A
Cited
US2355519A
Cited
US2406500A
Cited
US2433199A
Cited
US2447354A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-19 | 1959-03-21 | 1959-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-19 | 1963-03-21 | 1963-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-19 | 1967-03-21 | 1967-09-20 | $7700.00 | Window Closed / Lapsed |