US2453480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quickly detachable coupling
Assignee: Cardox Corp
•
Filing: 1945-11-02
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Granted: 1948-11-09
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Expires: 1965-11-02
Abstract
No abstract record available.
Inventors
- 👤 Hilding V Williamson
- 👤 Griesemer Raymond Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:50
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/28; F16L37/30; F16L37/32; F16L37/35; F16L37/08; F16L37/12; F16L37/20; F16L59/00; F16L59/14; F16L59/16; F16L59/18; F16L59/188; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/87925; Y10T137/87941; Y10T137/87949; Y10T137/87957
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) | 1951-11-09 | 1952-05-10 | 1952-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-09 | 1956-05-10 | 1956-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-09 | 1960-05-10 | 1960-11-09 | $7700.00 | Window Closed / Lapsed |