Patent US3306771A successfully refreshed from Google Patents.
US3306771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plural ester-imide resins on an electrical conductor
Assignee: Beck & Co Dr GmbH
•
Filing: 1964-11-13
•
Granted: 1967-02-28
•
Expires: 1984-11-13
Abstract
No abstract record available.
Inventors
- 👤 Schmidt Karl
- 👤 Hansch Ferdinand
- 👤 Rombrecht Hans-Malte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:57
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/308; H01B3/42; H01B7/00; H01B7/02; H01B7/0208; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/2942; Y10T428/2947; Y10T428/31504; Y10T428/31551; Y10T428/31554; Y10T428/31565; Y10T428/31605; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
AN ELECTRICAL CONDUCTOR PROVIDED WITH AN ELECTRICALLY INSULATING COATING COMPRISING AN INNER INSULATING LAYER CONSISTING ESSENTIALLY OF AN ESTER-IMIDE RESIN AND SUPERIMPOSED THEREON AN OUTER INSULATING LAYER IMPARTING INCREASED ABRASION RESISTANCE TO THE CONDUCTOR INSULATION AND CONSISTING ESSENTIALLY OF A COMBINATION OF A CROSSLINKED ESTER-IMIDE RESIN WITH A LINEAR POLYALKYLENE ESTER OF AT LEAST ONE DIBASIC ACID SELECTED FROM THE GROUP CONSISTING OF ISOPHTHALIC ACID AND TEREPHTHALIC ACID, THE PROPORTION IN SAID COMBINATION OF ESTER-IMIDE RESIN TO LINEAR POLYALKYLENE BEING ABOUT 20:80 TO 60:40 BY WEIGHT.
Claim 2
Dependent Claim
86 words
AN ELECTRICAL CONDUCTOR PROVIDED WITH AN ELECTRICALLY INSULATING COATING COMPRISING AN INNER INSULATING LAYER CONSISTING ESSENTIALLY OF AN ESTER-IMIDE RESIN AND SUPERIMPOSED THEREON AN OUTER INSULATING LAYER IMPARTING INCREASED ABRASION RESISTANCE TO THE CONDUCTOR INSULATION AND CONSISTING ESSENTIALLY OF A COMBINATION OF A CROSSLINKED ESTER-IMIDE RESIN WITH A LINEAR POLYALKYLENE ESTER OF AT LEAST ONE DIBASIC ACID SELECTED FROM THE GROUP CONSISTING OF ISOPHTHALIC ACID AND TEREPHTHALIC ACID, THE PROPORTION IN SAID COMBINATION OF ESTER-IMIDE RESIN TO LINEAR POLYALKYLENE BEING ABOUT 20:80 TO 60:40 BY WEIGHT.
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |