US2582746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling for pipes and tubes
Assignee: Individual
•
Filing: 1946-02-21
•
Granted: 1952-01-15
•
Expires: 1966-02-21
Abstract
No abstract record available.
Inventors
- 👤 Champion Mary Ann
- 👤 Jack K Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:01
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/02; F16L19/025; F16L19/028; F16L19/04; Y; Y10; Y10T; Y10T403/00; Y10T403/49; Y10T403/4941; Y10T403/57; Y10T403/5753
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US598857A
Cited
US906099A
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US1063996A
Cited
GB272071A
Cited
US1817854A
Cited
US1858136A
Cited
US1961453A
Cited
GB393419A
Cited
US2269629A
Cited
US2250477A
Cited
US2366010A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |