Plastic bag for fine powders
AssigneeUnited States Gypsum Company
InventorsStanley Doyle, George Boggia, Salvatore Immordino
Life of this patent
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AssigneeUnited States Gypsum Company
InventorsStanley Doyle, George Boggia, Salvatore Immordino
Estimating the term…
A method of making and filling a plastic bag includes the steps of providing a bag having a plurality of microperforations; filling the bag with a powdered product; securing the bag; removing at least a portion of entrapped air in the bag through the microperforations; and sealing the microperforations. A product includes a bag configured for being formed from a plastic film into which a plurality of microperforations have been created. The bag contents include less air than that present in the bag when the top and the bottom were secured, at least a portion of the air sealed inside the bag having been expelled through the microperforations. A sealant is used for sealing the microperforations.
A method of making and filling a plastic bag comprising:
A method of making and filling a plastic bag comprising:
A packaged product, comprising:
A packaged powdered product, comprising:
Dependencies are inferred from the claim text.