Tubing collar

United States of America Patent

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Aug 29, 1989
Grant Date
N/A
app pub date
May 6, 1988
filing date
May 6, 1988

priority date (Note)
Expired

status (Latency Note)

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Abstract

A collar for electrically insulating between upper and lower tubing sections in which load bearing insulating materials in the collar are isolated from fluids both interior and exterior the collar.

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Patent Owner(s)

Patent Owner	Address
PRODUCTION TECHNOLOGIES INTERNATIONAL INC	1021 MAIN STREET SUITE 1920 HOUSTON TX 77002

International Classification(s)

F16L:PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR ....

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Anderson, Douglas C	Spring, TX	5	46
Eastlund, Bernard J	Spring, TX	18	676
Schmitt, Kenneth J	Spring, TX	16	861

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Tubing collar

Number of patents in Portfolio can not be more than 2000

United States of America Patent

07190780

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Patent Longevity Expired	Forward Citations

PATENT NO	4861074
SERIAL NO	07190780
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07190780

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