US2924424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature compensated butterfly valve
Assignee: General Electric Co
•
Filing: 1955-11-17
•
Granted: 1960-02-09
•
Expires: 1975-11-17
Abstract
No abstract record available.
Inventors
- 👤 Titterington William Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:37
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/16; F16K1/18; F16K1/22; F16C; F16C25/00; F16C25/06; F16C25/08; F16C25/083; F16C19/00; F16C19/02; F16C19/04; F16C19/06; F16C19/54; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/905; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7737
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2180136A
Cited
US2751186A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-08 | 1963-08-10 | 1964-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-08 | 1967-08-10 | 1968-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-08 | 1971-08-10 | 1972-02-09 | $7700.00 | Window Closed / Lapsed |