US3258665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable capacitor
Assignee: —
•
Filing: —
•
Granted: 1966-06-28
•
Expires: 1983-06-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:56
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
IN A VARIABLE CAPACITOR HAVING A FIRST STATIONARY CAPACITOR PLATE THE COMBINATION OF, A ROTOR INCLUDING OPPOSITELY FACING SURFACES AND ARRANGED WITH ONE OF SAID SURFACES DISPOSED ADJACENT SAID FIRST PLATE, A SECOND CAPACITOR PLATE ON THE OTHER OF SAID SURFACE AND MOVABLE WITH SAID ROTOR SO THAT SAID FIRST AND SECOND PLATES ARE MOVABLE INTO AND OUT OF ALIGNMENT, AND A REFRACTORY GLAZE CONNECTED TO SAID OTHER OF SAID ROTOR SURFACES FOR STRUCTURALLY REINFORCING SAID ROTOR, SAID ROTOR BEING CHARACTERIZED BY A MINIMUM THICKNESS WHICH IS LESS THAN THE MINIMUM THICKNESS WHICH SAID ROTOR COULD HAVE FROM A STURCTURAL STANDPOINT WITHOUT SAID REINFORCING MEANS.
Claim 2
Dependent Claim
105 words
IN A VARIABLE CAPACITOR HAVING A FIRST STATIONARY CAPACITOR PLATE THE COMBINATION OF, A ROTOR INCLUDING OPPOSITELY FACING SURFACES AND ARRANGED WITH ONE OF SAID SURFACES DISPOSED ADJACENT SAID FIRST PLATE, A SECOND CAPACITOR PLATE ON THE OTHER OF SAID SURFACE AND MOVABLE WITH SAID ROTOR SO THAT SAID FIRST AND SECOND PLATES ARE MOVABLE INTO AND OUT OF ALIGNMENT, AND A REFRACTORY GLAZE CONNECTED TO SAID OTHER OF SAID ROTOR SURFACES FOR STRUCTURALLY REINFORCING SAID ROTOR, SAID ROTOR BEING CHARACTERIZED BY A MINIMUM THICKNESS WHICH IS LESS THAN THE MINIMUM THICKNESS WHICH SAID ROTOR COULD HAVE FROM A STURCTURAL STANDPOINT WITHOUT SAID REINFORCING MEANS.
References Cited (Backward Citations)
US2219921A
Cited
US2535367A
Cited
US2903780A
Cited
GB726958A
Cited
US2972180A
Cited
US3175133A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-27 | 1969-12-27 | 1970-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-27 | 1973-12-27 | 1974-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $7700.00 | Window Closed / Lapsed |