Patent US2465197A successfully refreshed from Google Patents.
US2465197A
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US
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Coupling
Assignee: Individual
•
Filing: 1945-08-25
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Granted: 1949-03-22
•
Expires: 1965-08-25
Abstract
No abstract record available.
Inventors
- 👤 Newton L Chatham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:27
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/084; F16L37/098; F16L37/0982; Y; Y10; Y10S; Y10S285/00; Y10S285/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1587079A
Cited
US2111956A
Cited
US2127086A
Cited
US2252240A
Cited
US2238706A
Cited
US2280183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-21 | 1952-09-20 | 1953-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-21 | 1956-09-20 | 1957-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-21 | 1960-09-20 | 1961-03-22 | $7700.00 | Window Closed / Lapsed |