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

Richard W. Renfree

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Method of deriving polystyrene and polyolefin plastics composite

Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion
Patent

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Method of recycling post-consumer plastic waste

Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Including application of internal fluid pressure to hollow...
Patent

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Use of recycled plastics for structural building forms

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-996119

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