US3376481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin film capacitor
Assignee: AT&T Inc
•
Filing: 1966-10-31
•
Granted: 1968-04-02
•
Expires: 1986-10-31
Abstract
No abstract record available.
Inventors
- 👤 Klerer Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:14
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/06; H01G4/08; H01G4/10; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A THIN FILM CAPACITOR INCLUDING SUCCESSIVELY A SUBSTRATE MEMBER, A LAYER OF TANTALUM, AN OXIDE LAYER OF TANTALUM, A LOW DENSITY TANTALUM COUNTERELECTRODE EVIDENCING A DENSITY LESS THAN 16 GRAMS CM.-3, AND AN OXIDE LAYER ON SAID LOW DENSITY TANTALUM.
Claim 2
Dependent Claim
40 words
A THIN FILM CAPACITOR INCLUDING SUCCESSIVELY A SUBSTRATE MEMBER, A LAYER OF TANTALUM, AN OXIDE LAYER OF TANTALUM, A LOW DENSITY TANTALUM COUNTERELECTRODE EVIDENCING A DENSITY LESS THAN 16 GRAMS CM.-3, AND AN OXIDE LAYER ON SAID LOW DENSITY TANTALUM.
References Cited (Backward Citations)
US3264537A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |