Patent US2419702A successfully refreshed from Google Patents.
US2419702A
Expired / Lapsed
US
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Quick detachable coupling
Assignee: Individual
•
Filing: 1944-08-05
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Granted: 1947-04-29
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Expires: 1964-08-05
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:00
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/10; F16L37/24; F16L37/244; F16L37/252
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US809746A
Cited
US1238218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-28 | 1950-10-28 | 1951-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-28 | 1954-10-28 | 1955-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-28 | 1958-10-28 | 1959-04-29 | $7700.00 | Window Closed / Lapsed |