US3555430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television receiver converter
Assignee: Ericsson Inc
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Filing: 1969-04-22
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Granted: 1971-01-12
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Expires: 1989-04-22
Abstract
Abstract THE DISCLOSURE CONCERNS VARIOUS USUALLY EFFECTIVE WAYS IN WHICH VHF, OR VHF AND UHF, SIGNALS MAY BE TRANSMITTED BY COAXIAL CABLE AS VHF AND THEN CONVERTED TO UHF AND SUPPLIED TO A TELEVISION RECEIVER, TOGETHER WITH TUNING THEREOF BY LOCAL OR AUXILIARY UHF TUNING MEANS.
Inventors
- 👤 Thomas L Fischer
- 👤 Stanley C Forrest Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:27
CPC Classifications
H; H03; H03J; H03J3/00; H03D; H03D7/00; H03D7/16; H03D7/161
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |