US2613254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric relay
Assignee: Siemens Mobility Ltd
•
Filing: 1950-05-05
•
Granted: 1952-10-07
•
Expires: 1970-05-05
Abstract
No abstract record available.
Inventors
- 👤 King Kenneth Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:03
CPC Classifications
H; H01; H01H; H01H47/00; H01H47/02; H01H47/20; H01H51/00; H01H51/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US512386A
Cited
US1704736A
Cited
US1742367A
Cited
US2046748A
Cited
US2276675A
Cited
US2416681A
Cited
US2479231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-07 | 1956-04-07 | 1956-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-07 | 1960-04-07 | 1960-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-07 | 1964-04-07 | 1964-10-07 | $7700.00 | Window Closed / Lapsed |