US2980133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-purpose diaphragm gas valve
Assignee: American Radiator and Standard Sanitary Corp
•
Filing: 1956-04-12
•
Granted: 1961-04-18
•
Expires: 1976-04-12
Abstract
No abstract record available.
Inventors
- 👤 Cooper Lemuel Browning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:52
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/365; G; G05; G05D; G05D16/00; G05D16/20; G05D16/2093; G05D16/2095; Y; Y10; Y10T; Y10T137/00; Y10T137/1407; Y10T137/1516; Y10T137/7722; Y10T137/7781; Y10T137/7782; Y10T137/7793; Y10T137/7822; Y10T137/7823; Y10T137/7825; Y10T137/7826
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US664146A
Cited
US990695A
Cited
DE323738C
Cited
US1987032A
Cited
US2178974A
Cited
US2056322A
Cited
US2069808A
Cited
US2270304A
Cited
US2237404A
Cited
US2409947A
Cited
US2588186A
Cited
US2614622A
Cited
US2666278A
Cited
GB708143A
Cited
US2721570A
Cited
US2731033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |