US1405950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic shut-off for locomotive steam pipes
Assignee: Individual
•
Filing: 1919-11-17
•
Granted: 1922-02-07
•
Expires: 1939-11-17
Abstract
No abstract record available.
Inventors
- 👤 Mary M Stafford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:11
CPC Classifications
B; B61; B61C; B61C8/00; Y; Y10; Y10T; Y10T137/00; Y10T137/0753; Y10T137/6851; Y10T137/6855; Y10T137/6858; Y10T137/6862; Y10T137/7722; Y10T137/7837; Y10T137/7869; Y10T137/7871
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) | 1925-02-06 | 1925-08-08 | 1926-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-02-06 | 1929-08-08 | 1930-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-02-06 | 1933-08-08 | 1934-02-07 | $7700.00 | Window Closed / Lapsed |