US2568820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Releasable hook
Assignee: Individual
•
Filing: 1951-05-04
•
Granted: 1951-09-25
•
Expires: 1971-05-04
Abstract
No abstract record available.
Inventors
- 👤 Frank E Osika
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:02
CPC Classifications
F; F16; F16B; F16B45/00; F16B45/02; F16B45/024; F16B45/026; B; B66; B66C; B66C1/00; B66C1/10; B66C1/22; B66C1/34; F16B45/022; F16G; F16G17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |