US2977638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integral end stop for separable fasteners and the method of producing the same
Assignee: Individual
•
Filing: 1955-09-09
•
Granted: 1961-04-04
•
Expires: 1975-09-09
Abstract
No abstract record available.
Inventors
- 👤 Louis H Morin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:29
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/42; A44B19/60; Y; Y10; Y10S; Y10S425/00; Y10S425/034; Y10T; Y10T29/00; Y10T29/49; Y10T29/49782
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2078016A
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US2398592A
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US2742670A
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US2683899A
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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) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |