US3328700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for fine tuning television receivers with a.f.c. disabler
Assignee: Philips North America LLC
•
Filing: 1964-11-04
•
Granted: 1967-06-27
•
Expires: 1984-11-04
Abstract
No abstract record available.
Inventors
- 👤 Jack R Chipman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:43
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/44; H04N5/50; H03; H03J; H03J7/00; H03J7/02; H03J7/04; H03J7/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN A TELEVISION RECEIVER HAVING AUTOMATIC FINE TUNING CIRCUITRY THEREIN, THE COMBINATION COMPRISING: MEANS HAVING AN OUTPUT AND PRODUCING AN AUTOMATIC FREQUENCY CONTROL VOLTAGE AT SAID OUTPUT; AN AUTOMATIC FREQUENCY CONTROL DEFEAT SWITCH COUPLED TO SAID OUTPUT; A TUNER MECHANISM COUPLED TO TUNER CIRCUITRY IN SAID RECEIVER AND INCLUDING A MANUALLY OPERABLE CHANNEL SELECTOR MEANS; A PLURALITY OF FINE TUNING ELEMENTS, EACH OF SAID ELEMENTS BEING MOUNTED TO SAID CHANNEL SELECTOR MEANS; A MANUALLY OPERABLE FINE TUNING MEMBER ENGAGING ONE OF SAID ELEMENTS TO ENABLE MANUAL FINE TUNING OF THE RECEIVER FOR THE CHANNEL CORRESPONDING TO SAID ONE ELEMENT; A MOVABLE CONTACT OF SAID DEFEAT SWITCH BEING OPERABLE BY SAID MEMBER DURING MANUAL FINE TUNING TO DISABLE THE AUTOMATIC FINE TUNE CIRCUITRY OF SAID RECEIVER.
Claim 2
Dependent Claim
125 words
IN A TELEVISION RECEIVER HAVING AUTOMATIC FINE TUNING CIRCUITRY THEREIN, THE COMBINATION COMPRISING: MEANS HAVING AN OUTPUT AND PRODUCING AN AUTOMATIC FREQUENCY CONTROL VOLTAGE AT SAID OUTPUT; AN AUTOMATIC FREQUENCY CONTROL DEFEAT SWITCH COUPLED TO SAID OUTPUT; A TUNER MECHANISM COUPLED TO TUNER CIRCUITRY IN SAID RECEIVER AND INCLUDING A MANUALLY OPERABLE CHANNEL SELECTOR MEANS; A PLURALITY OF FINE TUNING ELEMENTS, EACH OF SAID ELEMENTS BEING MOUNTED TO SAID CHANNEL SELECTOR MEANS; A MANUALLY OPERABLE FINE TUNING MEMBER ENGAGING ONE OF SAID ELEMENTS TO ENABLE MANUAL FINE TUNING OF THE RECEIVER FOR THE CHANNEL CORRESPONDING TO SAID ONE ELEMENT; A MOVABLE CONTACT OF SAID DEFEAT SWITCH BEING OPERABLE BY SAID MEMBER DURING MANUAL FINE TUNING TO DISABLE THE AUTOMATIC FINE TUNE CIRCUITRY OF SAID RECEIVER.
References Cited (Backward Citations)
US3236109A
Cited
US3166714A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |