4. Plastic and nonmetallic article shaping or treating: processes
  5. Forming continuous or indefinite length work
  6. Shaping by extrusion

Shigeaki Kobayashi

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Method of producing a microporous polyolefin membrane

Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ
Reexamination Certificate

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Microporous polyolefin film and process for producing the same

Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Composite having voids in a component
Reexamination Certificate

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Microporous polyolefin film and process for producing the same

Liquid purification or separation – Filter – Material
Reexamination Certificate

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Microporous polyolefin membrane, and method of producing the...

Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ
Reexamination Certificate

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Polyolefin microporous film and method for preparing the same

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer – spacer or materials for use therewith
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2077834

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