Patent US1960108A successfully refreshed from Google Patents.
Patent US2862731A successfully refreshed from Google Patents.
US2862731A
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Flanged, bend-clamped swivel coupling for fluid handling tubes
Assignee: Chiksan Co
•
Filing: 1955-04-29
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Granted: 1958-12-02
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Expires: 1975-04-29
Abstract
No abstract record available.
Inventors
- 👤 Robert R Hedden
- 👤 Henry W Roessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:45
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/08; F16L27/0804; F16L27/0808; F16L27/0812; F16L27/0816; F16L21/00; F16L21/02; F16L21/022; Y; Y10; Y10S; Y10S285/00; Y10S285/906
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |