US2808299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self locking wedge fasteners
Assignee: Individual
•
Filing: 1955-05-23
•
Granted: 1957-10-01
•
Expires: 1975-05-23
Abstract
No abstract record available.
Inventors
- 👤 Tapper Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:05
CPC Classifications
B; B25; B25G; B25G3/00; B25G3/02; B25G3/12; B25G3/28; Y; Y10; Y10T; Y10T403/00; Y10T403/76
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US824415A
Cited
US1445822A
Cited
US1489612A
Cited
US1600960A
Cited
US2463973A
Cited
US2455733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |