Patent US2754135A successfully refreshed from Google Patents.
US2754135A
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US
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Rapid pipe coupling with means to prevent seal blowout
Assignee: Individual
•
Filing: 1952-01-02
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Granted: 1956-07-10
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Expires: 1972-01-02
Abstract
No abstract record available.
Inventors
- 👤 Kramer Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:44
CPC Classifications
F; F16; F16N; F16N21/00; F16N21/04; F16L; F16L37/00; F16L37/08; F16L37/12; F16L37/127
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) | 1959-07-10 | 1960-01-09 | 1960-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-10 | 1964-01-09 | 1964-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-10 | 1968-01-09 | 1968-07-10 | $7700.00 | Window Closed / Lapsed |