US2806186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Relay adjusting set
Assignee: AT&T Inc
•
Filing: 1954-03-24
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Granted: 1957-09-10
•
Expires: 1974-03-24
Abstract
No abstract record available.
Inventors
- 👤 John T L Brown
- 👤 Jr Charles E Pollard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:19
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/327; G01R31/3277; G01R31/3278
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |