US2461772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid control valve
Assignee: General Controls Co
•
Filing: 1944-11-20
•
Granted: 1949-02-15
•
Expires: 1964-11-20
Abstract
No abstract record available.
Inventors
- 👤 William A Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:51
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0644; F16K31/0655; F16K31/0658
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US602737A
Cited
US854300A
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US1045399A
Cited
GB191317926A
Cited
US1699541A
Cited
US1738437A
Cited
US1841140A
Cited
US2335312A
Cited
US2303066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-15 | 1952-08-16 | 1953-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-15 | 1956-08-16 | 1957-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-15 | 1960-08-16 | 1961-02-15 | $7700.00 | Window Closed / Lapsed |