US2570406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swivel coupling
Assignee: Resistoflex Corp
•
Filing: 1949-02-08
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Granted: 1951-10-09
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Expires: 1969-02-08
Abstract
No abstract record available.
Inventors
- 👤 Alexander N Troshkin
- 👤 Irving D Press
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:33
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/08; F16L27/0804; F16L27/0808; F16L27/0812; F16L27/0816; F16L33/00; F16L33/20; F16L33/207; F16L33/2071; F16L33/2073; Y; Y10; Y10S; Y10S277/00; Y10S277/93; Y10S285/00; Y10S285/91; Y10S285/918; Y10T; Y10T403/00; Y10T403/32; Y10T403/32975; Y10T403/32983
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) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |