US2795773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Repeating multipole selector relays
Assignee: Boeing Co
•
Filing: 1952-05-16
•
Granted: 1957-06-11
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Expires: 1972-05-16
Abstract
No abstract record available.
Inventors
- 👤 Leroy C Perkins
- 👤 Francis D Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:23
CPC Classifications
H; H01; H01H; H01H63/00; H01H63/36; H01H63/38; A; A63; A63H; A63H30/00; A63H30/02; A63H30/04; G; G08; G08C; G08C19/00; G08C19/16; G08C19/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1156043A
Cited
US1689294A
Cited
DE554096C
Cited
US1898762A
Cited
US2399720A
Cited
US2612555A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-10 | 1960-12-10 | 1961-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-10 | 1964-12-10 | 1965-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-10 | 1968-12-10 | 1969-06-11 | $7700.00 | Window Closed / Lapsed |