US3004152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle weight responsive means
Assignee: Westinghouse Air Brake Co
•
Filing: 1955-12-09
•
Granted: 1961-10-10
•
Expires: 1975-12-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Howard E Dyche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:01
CPC Classifications
B; B61; B61L; B61L17/00; G; G01; G01G; G01G19/00; G01G19/02; G01G19/04; G01G19/045; G01G19/047; G01G3/00; G01G3/12; G01G3/14; G01G3/1402; G01G3/1406; G01G3/142; Y; Y10; Y10S; Y10S177/00; Y10S177/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US756208A
Cited
US1889663A
Cited
US1952171A
Cited
GB457295A
Cited
US2183078A
Cited
FR905461A
Cited
US2414161A
Cited
GB698793A
Cited
DE829805C
Cited
US2779583A
Cited
US2866137A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |