Patent US3537479A successfully refreshed from Google Patents.
US3537479A
Expired / Lapsed
US
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Single lever mixing valve
Assignee: Individual
•
Filing: 1967-11-09
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Granted: 1970-11-03
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Expires: 1987-11-09
Abstract
No abstract record available.
Inventors
- 👤 Merritt J Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:30
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/10; F16K11/14; F16K11/18; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6031; Y10T137/6035; Y10T137/6089; Y10T137/6096; Y10T137/6103; Y10T137/8593; Y10T137/87056; Y10T137/87088; Y10T137/87249; Y10T137/87571; Y10T137/87676; Y10T137/87684; Y10T137/87692; Y10T137/877; Y10T137/87829; Y10T137/87837; Y10T137/87845
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) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |