US2700980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible valve and the like
Assignee: Goodrich Corp
•
Filing: 1950-08-02
•
Granted: 1955-02-01
•
Expires: 1970-08-02
Abstract
No abstract record available.
Inventors
- 👤 Mary M Andrews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:44
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/20; F16K15/202; Y; Y10; Y10S; Y10S116/00; Y10S116/09; Y10T; Y10T137/00; Y10T137/3584; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/788; Y10T137/7882; Y10T137/7884
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US599454A
Cited
US606069A
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US614968A
Cited
GB189723585A
Cited
US1702974A
Cited
US1827028A
Cited
US1942959A
Cited
US2061240A
Cited
GB424451A
Cited
US2212733A
Cited
US2604297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-31 | 1958-08-02 | 1959-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-31 | 1962-08-02 | 1963-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-31 | 1966-08-02 | 1967-02-01 | $7700.00 | Window Closed / Lapsed |