US2566494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hotbox alarm device
Assignee: Standard Car Truck Co
•
Filing: 1946-12-13
•
Granted: 1951-09-04
•
Expires: 1966-12-13
Abstract
No abstract record available.
Inventors
- 👤 Charles P Leese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:08
CPC Classifications
B; B61; B61K; B61K9/00; B61K9/04; F; F16; F16C; F16C17/00; F16C17/12; F16C17/24; Y; Y10; Y10S; Y10S116/00; Y10S116/38; Y10S277/00; Y10S277/931; Y10S277/933
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE67139C
Cited
US2025343A
Cited
GB311644A
Cited
US1979875A
Cited
US2153692A
Cited
US2126129A
Cited
US2203051A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-03 | 1955-03-05 | 1955-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-03 | 1959-03-05 | 1959-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-03 | 1963-03-05 | 1963-09-04 | $7700.00 | Window Closed / Lapsed |