Weather-resistant and self-draining thread protector

United States of America Patent

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Dec 11, 1984
Grant Date
N/A
app pub date
Dec 19, 1983
filing date
Dec 19, 1983

priority date (Note)
Expired

status (Latency Note)

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Abstract

A self-draining composite plastic and steel thread protector for both the pin and box ends of oil field tubulars. The protector completely seals and prevents pressure differentials across the threads as well as provides openings for draining any moisture that may enter the tubular.

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Patent Owner(s)

Patent Owner	Address
SHELL OIL COMPANY	P O BOX 2463 ONE SHELL PLAZA HOUSTON TX 77252-2463
SHELL OFFSHORE INC	P O BOX 60193 2906 ONE SHELL SQUARE NEW ORLEANS LA 70160

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
Grimes, William D	Harvey, LA	1	26
Peterson, James L	Gretna, LA	27	349
Waldo, David T	Kingwood, TX	1	26

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Fee	Large entity fee	small entity fee	micro entity fee	due date

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

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Weather-resistant and self-draining thread protector

Number of patents in Portfolio can not be more than 2000

United States of America Patent

06562548

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PATENT NO	4487228
SERIAL NO	06562548
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06562548

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