US2697624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable knot tying device
Assignee: Individual
•
Filing: 1951-11-03
•
Granted: 1954-12-21
•
Expires: 1971-11-03
Abstract
No abstract record available.
Inventors
- 👤 John A Thomas
- 👤 Edwin W Albrecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:09
CPC Classifications
A; A01; A01K; A01K91/00; A01K91/03; A01K91/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-20 | 1958-06-21 | 1958-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-20 | 1962-06-21 | 1962-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-20 | 1966-06-21 | 1966-12-21 | $7700.00 | Window Closed / Lapsed |