US2852041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid selecting apparatus
Assignee: Individual
•
Filing: 1946-01-16
•
Granted: 1958-09-16
•
Expires: 1966-01-16
Abstract
No abstract record available.
Inventors
- 👤 William J Stinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:54
CPC Classifications
F; F16; F16K; F16K41/00; F16K41/10; F16K41/103; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86501; Y10T137/87571
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1436444A
Cited
US1731009A
Cited
US1702762A
Cited
US1791923A
Cited
US2209991A
Cited
US2253020A
Cited
US2317422A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |