US2747604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing valve
Assignee: Speakman Co
•
Filing: 1952-08-13
•
Granted: 1956-05-29
•
Expires: 1972-08-13
Abstract
No abstract record available.
Inventors
- 👤 Fraser James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:10
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/04; F16K11/056; F16K11/0565; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6966; Y10T137/6969; Y10T137/698; Y10T137/8593; Y10T137/86493; Y10T137/86815; Y10T137/86879; Y10T137/86887; Y10T137/87571; Y10T137/87676; Y10T137/87684; Y10T137/87692
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US949869A
Cited
US1763877A
Cited
US1840961A
Cited
US1969870A
Cited
US2045308A
Cited
US2317051A
Cited
US2519158A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |