Patent US2497375A successfully refreshed from Google Patents.
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 20:26
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
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US490684A
Cited
US941053A
Cited
US1090669A
Cited
US1169692A
Cited
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 |