US2585684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-speed sensitive relay
Assignee: Unisys Corp
•
Filing: 1947-10-11
•
Granted: 1952-02-12
•
Expires: 1967-10-11
Abstract
No abstract record available.
Inventors
- 👤 Edwin O Roggenstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:47
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/16; H01H50/18; H01H50/34; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49073
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |