Patent US2585684A successfully refreshed from Google Patents.
US2585684A
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High-speed sensitive relay
Assignee: Unisys Corp
•
Filing: 1947-10-11
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Granted: 1952-02-12
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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 04:50
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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References Cited (Backward Citations)
US286917A
Cited
US392167A
Cited
US847555A
Cited
US981930A
Cited
US1001562A
Cited
US1103530A
Cited
US1108320A
Cited
US1184430A
Cited
GB100732A
Cited
US1367727A
Cited
US1360281A
Cited
FR561529A
Cited
US1867099A
Cited
DE509064C
Cited
US1764819A
Cited
US1830628A
Cited
US2145327A
Cited
US2237705A
Cited
US2292497A
Cited
US2426253A
Cited
US2381080A
Cited
US2434096A
Cited
US2423116A
Cited
US2438745A
Cited
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 |