US2650613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graduated universal valve for gas appliances with slitted sleeve
Assignee: Individual
•
Filing: 1948-05-15
•
Granted: 1953-09-01
•
Expires: 1968-05-15
Abstract
No abstract record available.
Inventors
- 👤 Brumbaugh Isaac Vernon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:34
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/10; F16K5/103; F16K5/106; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87096; Y10T137/87121; Y10T137/87129; Y10T137/87137; Y10T137/87917; Y10T137/88022; Y10T137/8803
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR375821A
Cited
US1214457A
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US1674743A
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FR637448A
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US1810331A
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US1827555A
Cited
DE552778C
Cited
FR772759A
Cited
US2106310A
Cited
US2101356A
Cited
US2229826A
Cited
US2252185A
Cited
US2288913A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-31 | 1957-03-02 | 1957-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-31 | 1961-03-02 | 1961-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-31 | 1965-03-02 | 1965-09-01 | $7700.00 | Window Closed / Lapsed |