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US2542701A
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US
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Swivel coupling
Assignee: Resistoflex Corp
•
Filing: 1948-12-16
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Granted: 1951-02-20
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Expires: 1968-12-16
Abstract
No abstract record available.
Inventors
- 👤 Irving D Press
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:43
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/08; F16L27/0804; F16L27/0808; F16L27/0812; F16L27/0816; Y; Y10; Y10S; Y10S285/00; Y10S285/918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2477676A
Cited
US1450126A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |