Patent US2606737A successfully refreshed from Google Patents.
US2606737A
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US
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Lubricated valve
Assignee: Mueller Co
•
Filing: 1946-04-12
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Granted: 1952-08-12
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Expires: 1966-04-12
Abstract
No abstract record available.
Inventors
- 👤 Tratzik Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:43
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/22; F16K5/222; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4358; Y10T137/4365; Y10T137/4372
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2070490A
Cited
US1998029A
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US2086946A
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US2169810A
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US2169525A
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US2321233A
Cited
US2281697A
Cited
US2289722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-12 | 1956-02-11 | 1956-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-12 | 1960-02-11 | 1960-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-12 | 1964-02-11 | 1964-08-12 | $7700.00 | Window Closed / Lapsed |