US2852760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coded carrier remote control systems
Assignee: Westinghouse Air Brake Co
•
Filing: 1953-05-29
•
Granted: 1958-09-16
•
Expires: 1973-05-29
Abstract
No abstract record available.
Inventors
- 👤 Paul K Eckhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:19
CPC Classifications
B; B61; B61L; B61L7/00; B61L7/06; B61L7/08; B61L7/088
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2141551A
Cited
US2289517A
Cited
US2276646A
Cited
US2368826A
Cited
US2409696A
Cited
US2456533A
Cited
US2559390A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |