US3243674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitor type sensing device
Assignee: Individual
•
Filing: 1964-01-09
•
Granted: 1966-03-29
•
Expires: 1984-01-09
Abstract
No abstract record available.
Inventors
- 👤 Ebert Gotthold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:04
CPC Classifications
H; H01; H01G; H01G7/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A CAPACITOR-LIKE CIRCUIT ELEMENT FOR DECTECTING SMALL FREQUENCY VARIATIONS OF AN A.C. FIELD APPLIED THERETO AT A FREQUENCY ABOVE 1000 CYCLES PER SECOND, AS THE RESULT OF A HIGH FREQUENCY RESPONSE OF THE DIELECTRIC CONSTANT, COMPRISING AN ENCLOSURE, AT LEAST TWO ELECTRODES ASSOCIATED WITH SAID ENCLOSURE, A SURFACE-ACTIVE, MICROPOROUS, VERY FINELY DIVIDED DIELECTRIC MATERIAL PACKED IN SAID ENCLOSURE AS A SORBENT, AND A FLUID HAVING AT LEAST ONE OH-GROUP ADDED AS A SORPTIVE TO THE DIELECTRIC MATERIAL IN AN AMOUNT
Claim 2
Dependent Claim
80 words
A CAPACITOR-LIKE CIRCUIT ELEMENT FOR DECTECTING SMALL FREQUENCY VARIATIONS OF AN A.C. FIELD APPLIED THERETO AT A FREQUENCY ABOVE 1000 CYCLES PER SECOND, AS THE RESULT OF A HIGH FREQUENCY RESPONSE OF THE DIELECTRIC CONSTANT, COMPRISING AN ENCLOSURE, AT LEAST TWO ELECTRODES ASSOCIATED WITH SAID ENCLOSURE, A SURFACE-ACTIVE, MICROPOROUS, VERY FINELY DIVIDED DIELECTRIC MATERIAL PACKED IN SAID ENCLOSURE AS A SORBENT, AND A FLUID HAVING AT LEAST ONE OH-GROUP ADDED AS A SORPTIVE TO THE DIELECTRIC MATERIAL IN AN AMOUNT
References Cited (Backward Citations)
CA663522A
Cited
US2377426A
Cited
US3022667A
Cited
US2759147A
Cited
US3148314A
Cited
US3083573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |