US2447900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hose coupling
Assignee: Weatherhead Co
•
Filing: 1944-06-27
•
Granted: 1948-08-24
•
Expires: 1964-06-27
Abstract
No abstract record available.
Inventors
- 👤 Charles H Crawley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:21
CPC Classifications
F; F16; F16L; F16L33/00; F16L33/24; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49917; Y10T29/49918
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US998587A
Cited
US1468601A
Cited
FR705651A
Cited
US1951860A
Cited
FR728404A
Cited
US2171945A
Cited
US2144117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-24 | 1952-02-23 | 1952-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-24 | 1956-02-23 | 1956-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-24 | 1960-02-23 | 1960-08-24 | $7700.00 | Window Closed / Lapsed |