US2893757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe coupling with seal weld cutter means
Assignee: RTX Corp
•
Filing: 1957-07-02
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Granted: 1959-07-07
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Expires: 1977-07-02
Abstract
No abstract record available.
Inventors
- 👤 Trent H Holmes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:26
CPC Classifications
F; F16; F16L; F16L13/00; F16L13/02; F16L13/04; F16L13/06; Y; Y10; Y10T; Y10T409/00; Y10T409/50; Y10T409/501476; Y10T409/50164; Y10T409/501968; Y10T82/00; Y10T82/25; Y10T82/2522
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-06 | 1963-01-05 | 1963-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-06 | 1967-01-05 | 1967-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-06 | 1971-01-05 | 1971-07-07 | $7700.00 | Window Closed / Lapsed |