US3046345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alternating current receivers
Assignee: Post Office
•
Filing: 1956-12-27
•
Granted: 1962-07-24
•
Expires: 1976-12-27
Abstract
No abstract record available.
Inventors
- 👤 Harris Lionel Roy Frank
- 👤 Martin Fred Nicholas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:51
CPC Classifications
H; H04; H04J; H04J3/00; H04J3/02; H04J3/12; H04Q; H04Q1/00; H04Q1/18; H04Q1/30; H04Q1/44; H04Q1/444; H04Q1/45; H04Q1/457
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2721899A
Cited
US2655648A
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US2680152A
Cited
US2744961A
Cited
US2774817A
Cited
US2784255A
Cited
US2784256A
Cited
US2862186A
Cited
US2727946A
Cited
US2820896A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |