US2497375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means to check operations of steam traps
Assignee: Individual
•
Filing: 1946-06-11
•
Granted: 1950-02-14
•
Expires: 1966-06-11
Abstract
No abstract record available.
Inventors
- 👤 Edmund L Seguin
- 👤 Klein Mary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:21
CPC Classifications
F; F16; F16T; F16T1/00; F16T1/38; F16T1/48; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3084; Y10T137/3087; Y10T137/8158; Y10T137/8225; Y10T137/8242
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US490684A
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US941053A
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US1090669A
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US1169692A
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US1351779A
Cited
US1490901A
Cited
US1376166A
Cited
US1411787A
Cited
GB338602A
Cited
US1968648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |