US2679409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clincher coupling
Assignee: Scovill Inc
•
Filing: 1951-01-24
•
Granted: 1954-05-25
•
Expires: 1971-01-24
Abstract
No abstract record available.
Inventors
- 👤 Donald L Spender
- 👤 Henry J Kachergis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:46
CPC Classifications
F; F16; F16L; F16L33/00; F16L33/20; F16L33/207; F16L33/2071; F16L33/2073; F16L33/2076
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1321324A
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US946703A
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US1083269A
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US1486421A
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GB248162A
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GB275802A
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US1965426A
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US2142752A
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US2280892A
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US2437933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-24 | 1957-11-23 | 1958-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-24 | 1961-11-23 | 1962-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-24 | 1965-11-23 | 1966-05-25 | $7700.00 | Window Closed / Lapsed |