US2448769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-coupling assembly
Assignee: Individual
•
Filing: 1945-09-07
•
Granted: 1948-09-07
•
Expires: 1965-09-07
Abstract
No abstract record available.
Inventors
- 👤 James M W Chamberlain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:13
CPC Classifications
F; F16; F16L; F16L27/00; F16L27/10; F16L27/113; F16L27/1133; F16L21/00; F16L21/002; F16L21/005; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49909; Y10T29/49913; Y10T403/00; Y10T403/45; Y10T403/451; Y10T403/452
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US767893A
Cited
US1329121A
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US1541601A
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US1377101A
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US1390564A
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US1649752A
Cited
US2225208A
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US2230287A
Cited
US2341164A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-07 | 1952-03-08 | 1952-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-07 | 1956-03-08 | 1956-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-07 | 1960-03-08 | 1960-09-07 | $7700.00 | Window Closed / Lapsed |