Patent US2980975A successfully refreshed from Google Patents.
US2980975A
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US
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Fastening device
Assignee: United Carr Fastener Corp
•
Filing: 1956-09-28
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Granted: 1961-04-25
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Expires: 1976-09-28
Abstract
No abstract record available.
Inventors
- 👤 Ernest E Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:17
CPC Classifications
A; A43; A43C; A43C11/00; A43C11/02; Y; Y10; Y10T; Y10T24/00; Y10T24/36; Y10T24/3683; Y10T24/45; Y10T24/45225; Y10T24/4588; Y10T24/45906; Y10T24/45927
Claims Analysis
Total Claims: 0
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US2668340A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |