US3382322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for electrically identifying one of a number of stations
Assignee: AC Cossor Ltd
•
Filing: 1964-12-07
•
Granted: 1968-05-07
•
Expires: 1984-12-07
Abstract
No abstract record available.
Inventors
- 👤 Duerden Francis
- 👤 Allen Patrick Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:59
CPC Classifications
H; H04; H04M; H04M15/00; H04M15/36; B; B61; B61L; B61L23/00; B61L23/002; B61L23/005; G; G08; G08C; G08C19/00; G08C19/02; G08C19/025; H04Q; H04Q5/00; H04Q5/02; H04Q5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2424243A
Cited
US2741755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |