US2502149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railway switch
Assignee: Individual
•
Filing: 1945-10-26
•
Granted: 1950-03-28
•
Expires: 1965-10-26
Abstract
No abstract record available.
Inventors
- 👤 Adam W Hageman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:58
CPC Classifications
A; A63; A63H; A63H19/00; A63H19/30; A63H19/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US219288A
Cited
US384304A
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US651112A
Cited
US755495A
Cited
US1291084A
Cited
US1783069A
Cited
US1870526A
Cited
GB425149A
Cited
US2214310A
Cited
US2297131A
Cited
US2375890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-27 | 1953-09-26 | 1954-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-27 | 1957-09-26 | 1958-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-27 | 1961-09-26 | 1962-03-28 | $7700.00 | Window Closed / Lapsed |