US1945645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot and cold water mixing valve
Assignee: Individual
•
Filing: 1930-03-03
•
Granted: 1934-02-06
•
Expires: 1950-03-03
Abstract
No abstract record available.
Inventors
- 👤 Daniel F Kumpman
- 👤 John E Kumpman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:04
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/10; F16K11/14; F16K11/18; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87056; Y10T137/87072
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1937-02-05 | 1937-08-07 | 1938-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-02-05 | 1941-08-07 | 1942-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-02-05 | 1945-08-07 | 1946-02-06 | $7700.00 | Window Closed / Lapsed |