Telltale for ethylene oxide sterilization
First Claim
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1. A TELLTALE DEVICE FOR ETHYLENE OXIDE STERILIZATION COMPRISING A PAD HAVING AN INDICATOR LIQUID ABSORBED THEREIN, AND A MEMBRANE OF SYNTHETIC PLASTIC MATERIAL ENCLOSING SAID PAD, SAID MEMBRANE BEING PERMEABLE TO ETHYLENE OXIDE GAS, SAID INDICATOR LIQUID BEING COMPOSED ESSENTIALLY OF AN AQUEOUS MAGNESIUM CHLORIDE SOLUTION, AN ACID SOLUBLE IN SAID AQUEOUS SOLUTION, AND AN ACID-ALKALI INDICATOR DYE DISPERSED IN SAID LIQUID.
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1 Claim
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1. A TELLTALE DEVICE FOR ETHYLENE OXIDE STERILIZATION COMPRISING A PAD HAVING AN INDICATOR LIQUID ABSORBED THEREIN, AND A MEMBRANE OF SYNTHETIC PLASTIC MATERIAL ENCLOSING SAID PAD, SAID MEMBRANE BEING PERMEABLE TO ETHYLENE OXIDE GAS, SAID INDICATOR LIQUID BEING COMPOSED ESSENTIALLY OF AN AQUEOUS MAGNESIUM CHLORIDE SOLUTION, AN ACID SOLUBLE IN SAID AQUEOUS SOLUTION, AND AN ACID-ALKALI INDICATOR DYE DISPERSED IN SAID LIQUID.
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Current AssigneeVincent A. Romito, Willard M. Huyck
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Original AssigneeVincent A. Romito, Willard M. Huyck
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InventorsHuyck, Willard M., Romito, Vincent A.
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Application NumberUS04/022,530Time in Patent Office501 DaysField of SearchUS Class Current422/424CPC Class CodesG01N 31/221 for investigating pH valueY10S 116/14 Tapes as carriersY10T 436/142222 Hetero-O [e.g., ascorbic ac...
