US2453483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromechanical railroad locomotive
Assignee: Individual
•
Filing: 1942-12-03
•
Granted: 1948-11-09
•
Expires: 1962-12-03
Abstract
No abstract record available.
Inventors
- 👤 Frank B Yingling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:47
CPC Classifications
B; B61; B61C; B61C9/00; B61C9/08; B61C9/24; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19228
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1136279A
Cited
US429314A
Cited
US726536A
Cited
US744423A
Cited
US907462A
Cited
US983949A
Cited
US1293934A
Cited
US1265078A
Cited
US1803876A
Cited
US1544909A
Cited
US1979435A
Cited
US1980656A
Cited
US2193214A
Cited
US2248495A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-09 | 1952-05-10 | 1952-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-09 | 1956-05-10 | 1956-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-09 | 1960-05-10 | 1960-11-09 | $7700.00 | Window Closed / Lapsed |