Patent US3079675A successfully refreshed from Google Patents.
US2852072A
Expired / Lapsed
US
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Timed fluid valve
Assignee: Erie Manufacturing Co
•
Filing: 1954-01-18
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Granted: 1958-09-16
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Expires: 1974-01-18
Abstract
No abstract record available.
Inventors
- 👤 Henry F Alfery
- 👤 Richard K Engholdt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:55
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/48; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7781; Y10T137/7793; Y10T137/7796; Y10T137/8593; Y10T137/86389
Claims Analysis
Total Claims: 0
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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 |