4. Plastic article or earthenware shaping or treating: apparatus
  5. Product or preform repair or restoring means
  6. Shape conforming sleeve or deformable pressure wrap means

Richard C. Polivka

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Dual gland air inversion and steam cure of cured in place...

Plastic article or earthenware shaping or treating: apparatus – Product or preform repair or restoring means
Reexamination Certificate

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Installation of cured in place liners with an endless...

Plastic and nonmetallic article shaping or treating: processes – Forming structural installations in situ – Uniting preform member with molding material
Reexamination Certificate

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Installation of cured in place liners with dual gland air...

Plastic and nonmetallic article shaping or treating: processes – Repairing or restoring consumer used articles for reuse – Hollow- or container-type articles
Reexamination Certificate

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Reusable inversion sleeve assembly for inversion of cured in...

Plastic article or earthenware shaping or treating: apparatus – Product or preform repair or restoring means – Shape conforming sleeve or deformable pressure wrap means
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2175274

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