Patent US2370296A successfully refreshed from Google Patents.
US2370296A
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Steam trap valve mechanism
Assignee: ILLINOIS ENGINEERING Co
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Filing: 1943-11-26
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Granted: 1945-02-27
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Expires: 1963-11-26
Abstract
No abstract record available.
Inventors
- 👤 John L Ehretsman
- 👤 Richard W Leutwiler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:54
CPC Classifications
F; F16; F16T; F16T1/00; F16T1/20; F16T1/26; F16T1/28; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3021; Y10T137/304; Y10T137/3052; Y10T137/3056; Y10T137/3059; Y10T137/3062; Y10T137/3065
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) | 1948-02-27 | 1948-08-28 | 1949-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-02-27 | 1952-08-28 | 1953-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-02-27 | 1956-08-28 | 1957-02-27 | $7700.00 | Window Closed / Lapsed |