US2764813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge-powered cow dehorner
Assignee: Individual
•
Filing: 1954-05-07
•
Granted: 1956-10-02
•
Expires: 1974-05-07
Abstract
No abstract record available.
Inventors
- 👤 Roy D Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:15
CPC Classifications
A; A01; A01K; A01K17/00; Y; Y10; Y10S; Y10S30/00; Y10S30/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US453421A
Cited
GB277558A
Cited
US2008362A
Cited
US2017329A
Cited
US2257245A
Cited
US2446994A
Cited
US2687572A
Cited
US2716813A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |