4. Chemistry: electrical current producing apparatus, product, and
  5. Current producing cell, elements, subcombinations and...
  6. Separator, retainer or spacer insulating structure

William W. Yen

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Battery separator

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Separator – retainer or spacer insulating structure
Patent

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Thermoplastic food casing

Stock material or miscellaneous articles – Hollow or container type article – Flexible food casing
Reexamination Certificate

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Wettable nonwoven battery separator

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-389850

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