Electric cables of reduced micro-voids in the extruded insulation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Nov 23, 1982
Issued Date -
N/A
app pub date -
Apr 14, 1980
filing date -
Apr 19, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A product by process for reducing micro-voids in cross-linked cable insulation without reducing the voltage breakdown strength thereof in which process the insulation, after cross-linking, is heated at a temperature in the range from about 120.degree. C. to about 150.degree. C. and under a pressure less than 10 mm. Hg for a period from about 8 hours to 48 hours. Also, a cable having such insulation which has micro-voids less than about 10.sup.2 per mm.sup.3 and a perforation gradient greater than the perforation gradient of a cable which has not been so treated.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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SOCIETA' PIRELLI S P A A COMPANY OF ITALY | PIAZZALE CADORNA 5 20123 MILAN |
International Classification(s)

- 1980 Application Filing Year
- H01B Class
- 213 Applications Filed
- 2 Patents Issued To-Date
- 0.94 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Lanfranconi, Gianmario | Trezzo d'Adda, IT | 12 | 222 |
# of filed Patents : 12 Total Citations : 222 | |||
Vecellio, Bernardino | Milan, IT | 8 | 34 |
# of filed Patents : 8 Total Citations : 34 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 8 Citation Count
- H01B Class
- 0 % this patent is cited more than
- 43 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Nov 23, 1982 | I | Issuance | |
Nov 23, 1982 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jan 01, 1981 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:INDUSTRIE PIRELLI S.P.A.;REEL/FRAME:003847/0084 Owner name: SOCIETA' PIRELLI S.P.A., PIAZZALE CADORNA 5, 20123 Effective Date: Jan 01, 1981 |
Apr 14, 1980 | F | Filing | |
Apr 19, 1978 | PD | Priority Date |

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