US2648550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient interchangeable tube coupling
Assignee: Weatherhead Co
•
Filing: 1948-08-17
•
Granted: 1953-08-11
•
Expires: 1968-08-17
Abstract
No abstract record available.
Inventors
- 👤 Louis B Courtot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:23
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/08; F16L19/10; Y; Y10; Y10T; Y10T403/00; Y10T403/49; Y10T403/4933
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR957532A
Cited
US1063926A
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US2073909A
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US2089790A
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GB483092A
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US2249169A
Cited
GB540088A
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US2255673A
Cited
GB575825A
Cited
US2414184A
Cited
US2441995A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-10 | 1957-02-09 | 1957-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-10 | 1961-02-09 | 1961-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-10 | 1965-02-09 | 1965-08-11 | $7700.00 | Window Closed / Lapsed |