US2479702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling
Assignee: Weatherhead Co
•
Filing: 1945-08-22
•
Granted: 1949-08-23
•
Expires: 1965-08-22
Abstract
No abstract record available.
Inventors
- 👤 Alvin A Rood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:56
CPC Classifications
F; F16; F16L; F16L33/00; F16L33/20; F16L33/213; Y; Y10; Y10S; Y10S285/00; Y10S285/918; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T29/49826; Y10T29/49908; Y10T29/49938; Y10T29/4994
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US605195A
Cited
US1013046A
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US1381179A
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US1461130A
Cited
US1753005A
Cited
GB276247A
Cited
US1759224A
Cited
US1915041A
Cited
US2093092A
Cited
US2094147A
Cited
US2381426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-22 | 1953-02-21 | 1953-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-22 | 1957-02-21 | 1957-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-22 | 1961-02-21 | 1961-08-23 | $7700.00 | Window Closed / Lapsed |