US3221114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hisao maeda
Assignee: —
•
Filing: —
•
Granted: 1965-11-30
•
Expires: 1982-11-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:13
CPC Classifications
H; H01; H01H; H01H19/00; H01H19/02; H01H19/10; H01H19/11; H01P; H01P1/00; H01P1/10; H01P1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
AN INDIRECT-CONTACT ROTARY CHANGEOVER SWITCH FOR TELEVISION TUNERS COMPRISING A ROTATABLE METAL ARM CONSTITUTING A FIRST CONTACT; A PLURALITY OF SECOND STATIONARY METAL CONTACTS; A HIGHLY DIELECTRIC MATERIAL BONDED TO THE LOWER SURFACE OF SAID ARM SO AS TO BE INTERPOSED BETWEEN SAID FIRST AND SECOND CONTACTS THUS FACILITATING INDIRECT CURRENT FLOW BETWEEN SAID FIRST CONTACT AND THE SECOND CONTACT SELECTED IN HIGH FREQUENCY ALTERNATING CURRENT CIRCUITS TO ELIMINATE RESISTNCE.
Claim 2
Dependent Claim
70 words
AN INDIRECT-CONTACT ROTARY CHANGEOVER SWITCH FOR TELEVISION TUNERS COMPRISING A ROTATABLE METAL ARM CONSTITUTING A FIRST CONTACT; A PLURALITY OF SECOND STATIONARY METAL CONTACTS; A HIGHLY DIELECTRIC MATERIAL BONDED TO THE LOWER SURFACE OF SAID ARM SO AS TO BE INTERPOSED BETWEEN SAID FIRST AND SECOND CONTACTS THUS FACILITATING INDIRECT CURRENT FLOW BETWEEN SAID FIRST CONTACT AND THE SECOND CONTACT SELECTED IN HIGH FREQUENCY ALTERNATING CURRENT CIRCUITS TO ELIMINATE RESISTNCE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |