US2940474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-port valves
Assignee: Individual
•
Filing: 1956-05-24
•
Granted: 1960-06-14
•
Expires: 1976-05-24
Abstract
No abstract record available.
Inventors
- 👤 Webster Eric Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:45
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/12; F16K7/14; F16K7/16; A; A01; A01J; A01J5/00; A01J5/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/877; Y10T137/87829; Y10T137/87837; Y10T137/87861; Y10T137/87869
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US406950A
Cited
US766420A
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FR429244A
Cited
US1773726A
Cited
US2211167A
Cited
US2497557A
Cited
US2579982A
Cited
US2562631A
Cited
US2677390A
Cited
US2654559A
Cited
US2702051A
Cited
FR94220E
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |