US2691231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic animal gate
Assignee: Individual
•
Filing: 1951-09-07
•
Granted: 1954-10-12
•
Expires: 1971-09-07
Abstract
No abstract record available.
Inventors
- 👤 Alonzo J Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:13
CPC Classifications
A; A01; A01K; A01K3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1413840A
Cited
US1563637A
Cited
US1546429A
Cited
US1759207A
Cited
US2234985A
Cited
US2258896A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-11 | 1958-04-12 | 1958-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-11 | 1962-04-12 | 1962-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-11 | 1966-04-12 | 1966-10-12 | $7700.00 | Window Closed / Lapsed |