Patent US2758443A successfully refreshed from Google Patents.
US2758443A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid coupling
Assignee: Individual
•
Filing: 1954-02-19
•
Granted: 1956-08-14
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Expires: 1974-02-19
Abstract
No abstract record available.
Inventors
- 👤 Perry Owen E Mckee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:52
CPC Classifications
F; F16; F16D; F16D33/00; F16D33/02; F16D33/04; Y; Y10; Y10S; Y10S74/00; Y10S74/03; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18088; Y10T74/1812
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) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |