Patent US2761704A successfully refreshed from Google Patents.
US2761704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube coupling adapted to upset pipe end
Assignee: Watts Electric and Manufacturing Co
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Filing: 1952-01-14
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Granted: 1956-09-04
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Expires: 1972-01-14
Abstract
No abstract record available.
Inventors
- 👤 Cullen B Crawford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:18
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/08; F16L19/10; Y; Y10; Y10S; Y10S285/00; Y10S285/906; Y10T; Y10T403/00; Y10T403/49; Y10T403/4933
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2211856A
Cited
US2450314A
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US2522785A
Cited
US2544108A
Cited
US2613959A
Cited
US2554585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-04 | 1960-03-05 | 1960-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-04 | 1964-03-05 | 1964-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-04 | 1968-03-05 | 1968-09-04 | $7700.00 | Window Closed / Lapsed |