Patent US2674774A successfully refreshed from Google Patents.
US2674774A
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US
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Self-locking clasp or coupling
Assignee: Interlock Corp
•
Filing: 1950-07-14
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Granted: 1954-04-13
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Expires: 1970-07-14
Abstract
No abstract record available.
Inventors
- 👤 Henry J Modrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:53
CPC Classifications
F; F16; F16G; F16G15/00; F16G15/04; A; A44; A44C; A44C5/00; A44C5/18; A44C5/20; A44C5/2057; A44C5/2061; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/51; Y10S24/53; Y10S24/54; Y10T; Y10T24/00; Y10T24/45; Y10T24/45005; Y10T24/4501; Y10T24/45225; Y10T24/45471; Y10T24/45513; Y10T24/45518; Y10T403/00; Y10T403/36; Y10T403/364; Y10T403/60; Y10T403/602; Y10T70/00; Y10T70/80; Y10T70/8432; Y10T70/8676; Y10T70/8703
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2464543A
Cited
US2465328A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |