US2722902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical injector plow
Assignee: Individual
•
Filing: 1951-09-17
•
Granted: 1955-11-08
•
Expires: 1971-09-17
Abstract
No abstract record available.
Inventors
- 👤 Woody D Hyatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:46
CPC Classifications
A; A01; A01C; A01C23/00; A01C23/02; A01C23/023; A01C23/025
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US169721A
Cited
US221004A
Cited
US642676A
Cited
US889947A
Cited
US1002344A
Cited
GB150140A
Cited
US1425451A
Cited
FR738515A
Cited
FR843895A
Cited
US2439743A
Cited
US2534798A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-07 | 1959-05-09 | 1959-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-07 | 1963-05-09 | 1963-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-07 | 1967-05-09 | 1967-11-08 | $7700.00 | Window Closed / Lapsed |