US2135125A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cooling system for railway cars
Assignee: MONITOR CONTROLLER Co
•
Filing: 1936-02-05
•
Granted: 1938-11-01
•
Expires: 1956-02-05
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Frese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:40
CPC Classifications
F; F25; F25B; F25B49/00; F25B49/02; F25B49/025; B; B60; B60H; B60H1/00; B60H1/00421; B60H1/00428; B61; B61D; B61D27/00; B61D27/0072; B61D27/0081; F25B2600/00; F25B2600/11; F25B2600/111; F25B2600/112; F25B2700/00; F25B2700/21; F25B2700/2104; Y; Y02; Y02T; Y02T10/00; Y02T10/80; Y02T10/88
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1941-10-31 | 1942-05-02 | 1942-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-10-31 | 1946-05-02 | 1946-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-10-31 | 1950-05-02 | 1950-11-01 | $7700.00 | Window Closed / Lapsed |