US3727117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-terminal capacitor
Assignee: Individual
•
Filing: 1972-01-28
•
Granted: 1973-04-10
•
Expires: 1992-01-28
Abstract
Abstract A three-terminal capacitor comprising a pair of electrodes and a pair of insulating rings separating said electrodes. A shield is connected to a third electrode formed by depositing a thin conducting film on one of the flat surfaces of at least one of the rings. The third electrode is interposed between the pair of rings whereby the electrical dimensions of the three-terminal capacitor are determined by the dimensions of the rings.
Inventors
- 👤 M Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:06
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/34; G01K7/343
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
69 words
A three-terminal capacitor comprising a pair of electrodes, a pair of insulating rings separating said electrodes, a shield connected to a third electrode formed by depositing a thin conducting film on one of the flat surfaces of at least one of said rings, said third electrode being interposed between said pair of rings whereby the electrical dimensions of said threeterminal capacitor are determined by the dimensions of said rings.
Claim 2
Dependent Claim
69 words
A three-terminal capacitor comprising a pair of electrodes, a pair of insulating rings separating said electrodes, a shield connected to a third electrode formed by depositing a thin conducting film on one of the flat surfaces of at least one of said rings, said third electrode being interposed between said pair of rings whereby the electrical dimensions of said threeterminal capacitor are determined by the dimensions of said rings.
Claim 3
Dependent Claim
14 words
A capacitor as defined in claim 1 wherein said rings are formed of quartz.
Claim 4
Dependent Claim
19 words
A capacitor as defined in claim 1 wherein said electrodes are formed by thin conducting films deposited onto slabs.
References Cited (Backward Citations)
US3253207A
Cited
US3292059A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |