US2902558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated core dry reed relay
Assignee: AT&T Inc
•
Filing: 1955-02-17
•
Granted: 1959-09-01
•
Expires: 1975-02-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert L Peek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:02
CPC Classifications
H; H01; H01H; H01H51/00; H01H51/28; H01H51/281
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE316404C
Cited
US2166163A
Cited
US2187115A
Cited
US2378986A
Cited
US2318405A
Cited
US2397123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |