US3429983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated power cables
Assignee: Bayer AG
•
Filing: 1964-11-23
•
Granted: 1969-02-25
•
Expires: 1984-11-23
Abstract
No abstract record available.
Inventors
- 👤 Hermann Hofmeier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:07
CPC Classifications
H; H01; H01B; H01B7/00; H01B7/02; H01B3/00; H01B3/18; H01B3/30; H01B3/42; H01B3/421; H01B3/426
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
AN ELECTRIC POWER CABLE COMPRISING A CONDUCTOR SURROUNDED BY A DIELECTRIC COATING OF A PARTIALLY CRYSRALLIZED POLYCARBONATE FILM, SAID PARTIALLY CRYSTALLIZED POLYCARBONATE FILM HAVING A CRYSTALLINE CONTENT OF AT LEAST 20 PERCENT.
Claim 2
Dependent Claim
32 words
AN ELECTRIC POWER CABLE COMPRISING A CONDUCTOR SURROUNDED BY A DIELECTRIC COATING OF A PARTIALLY CRYSRALLIZED POLYCARBONATE FILM, SAID PARTIALLY CRYSTALLIZED POLYCARBONATE FILM HAVING A CRYSTALLINE CONTENT OF AT LEAST 20 PERCENT.
References Cited (Backward Citations)
US2556295A
Cited
GB772627A
Cited
US2789967A
Cited
GB870095A
Cited
US3214500A
Cited
US3105872A
Cited
US3327033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |