Patent US3274467A successfully refreshed from Google Patents.
US3274467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic capacitor
Assignee: NL Industries Inc
•
Filing: 1963-05-17
•
Granted: 1966-09-20
•
Expires: 1983-05-17
Abstract
No abstract record available.
Inventors
- 👤 Ernest G Graf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:38
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/08; H01G4/12; H01G4/1272; H01G4/1281; C; C04; C04B; C04B35/00; C04B35/01; C04B35/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A CERAMIC CAPACITOR HAVING A CAPACITY OF AT LEAST ABOUT 10,000 PFD./CM.2 AND A SUITABLY LOW DISSIPATION FACTOR COMPRISING A SEMI-CONDUCTIVE, SINTERED CERAMIC BODY FORMED FROM A MIXTURE OF TITANIA AND A PENTAVALENT MODIFYING OXIDE SELECTED FROM THE GROUP CONSISTING OF NB2O5 AND SB2O5, AND A PAIR OF SPACED METALLIC ELECTRODES ATTACHED TO SAID BODY, AT LEAST ONE OF SAID ELECTRODES HAVING A NON-OHMIC CONTACT WITH SAID BODY.
Claim 2
Dependent Claim
68 words
A CERAMIC CAPACITOR HAVING A CAPACITY OF AT LEAST ABOUT 10,000 PFD./CM.2 AND A SUITABLY LOW DISSIPATION FACTOR COMPRISING A SEMI-CONDUCTIVE, SINTERED CERAMIC BODY FORMED FROM A MIXTURE OF TITANIA AND A PENTAVALENT MODIFYING OXIDE SELECTED FROM THE GROUP CONSISTING OF NB2O5 AND SB2O5, AND A PAIR OF SPACED METALLIC ELECTRODES ATTACHED TO SAID BODY, AT LEAST ONE OF SAID ELECTRODES HAVING A NON-OHMIC CONTACT WITH SAID BODY.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |