Patent US3284730A successfully refreshed from Google Patents.
US3284730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio frequency tuning device
Assignee: Duracell Inc USA
•
Filing: 1964-07-31
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Granted: 1966-11-08
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Expires: 1984-07-31
Abstract
No abstract record available.
Inventors
- 👤 Ronnie R Pitt
- 👤 Stultz Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:55
CPC Classifications
H; H03; H03D; H03D9/00; H03D9/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A TUNER ASSEMBLY FOR ACCEPTING VERY HIGH FREQUENCY SIGNALS COMPRISING A BODY, A CIRCUIT BOARD WITHIN SAID BODY, SAID CIRCUIT BOARD HAVING MOUNTED THEREON COMPONENTS REQUIRED TO CONVERT SAID VERY HIGH FREQUENCY SIGNALS TO AN INTERMEDIATE FREQUENCY, SAID CIRCUIT BOARD HAVING PLUG-CONNECTOR MEANS FOR CONNECTION TO EXTERNAL CIRCUITRY, A CIRCULAR INDUCTOR SPANNING AN ARC LESS THAN 360*, SAID INDUCATOR REVOLVABLE BY MEANS OF A SHAFT COUPLED THERETO, A CONTACT PRESSING AGAINST THE PERIPHERY OF SAID INDUCTOR SO THAT ROTATION OF SAID SHAFT CAUSES A VARIATION OF INDUCTANCE BETWEEN SAID SHAFT AND SAID CONTACT, A PARTIAL SHIELD PARTITIONING SAID BODY, SAID SHIELD AUG-
Claim 2
Dependent Claim
102 words
A TUNER ASSEMBLY FOR ACCEPTING VERY HIGH FREQUENCY SIGNALS COMPRISING A BODY, A CIRCUIT BOARD WITHIN SAID BODY, SAID CIRCUIT BOARD HAVING MOUNTED THEREON COMPONENTS REQUIRED TO CONVERT SAID VERY HIGH FREQUENCY SIGNALS TO AN INTERMEDIATE FREQUENCY, SAID CIRCUIT BOARD HAVING PLUG-CONNECTOR MEANS FOR CONNECTION TO EXTERNAL CIRCUITRY, A CIRCULAR INDUCTOR SPANNING AN ARC LESS THAN 360*, SAID INDUCATOR REVOLVABLE BY MEANS OF A SHAFT COUPLED THERETO, A CONTACT PRESSING AGAINST THE PERIPHERY OF SAID INDUCTOR SO THAT ROTATION OF SAID SHAFT CAUSES A VARIATION OF INDUCTANCE BETWEEN SAID SHAFT AND SAID CONTACT, A PARTIAL SHIELD PARTITIONING SAID BODY, SAID SHIELD AUG-
References Cited (Backward Citations)
US2734175A
Cited
US2498529A
Cited
US2503582A
Cited
US2543560A
Cited
US2711518A
Cited
US2798161A
Cited
US2759158A
Cited
US2834948A
Cited
US3001069A
Cited
US3016505A
Cited
US3172062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |