Interfacial surface generator

United States of America Patent

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Mar 10, 1992
Grant Date
N/A
app pub date
Dec 21, 1990
filing date
Dec 21, 1990

priority date (Note)
Expired

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Abstract

Method and apparatus are disclosed for making multilayer film having a prescribed gradient in, or distribution of, the thicknesses of one or more materials through the thickness of the film.

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Patent Owner(s)

Patent Owner	Address
3M INNOVATIVE PROPERTIES COMPANY	P O BOX 33427 ST PAUL MN 55133-3427

International Classification(s)

B29C:SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTAN....

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Ayres, Ralph F	Midland, MI	1	200
Gosen, Daniel J	Saginaw, MI	2	388
Schrenk, Walter J	Midland, MI	32	5010
Shastri, Ranganath K	Midland, MI	8	651

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Interfacial surface generator

Number of patents in Portfolio can not be more than 2000

United States of America Patent

07633644

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PATENT NO	5094788
SERIAL NO	07633644
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07633644

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