ISG/AG

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5071403 Method and apparatus for protecting the pump of a breast pump from fouling by milkExpiredNov 14, 89Dec 10, 91[A61M]
5049126 Breast pump with nipple stimulating insertExpiredFeb 16, 90Sep 17, 91[A61M]
5032103 Breast shieldExpiredFeb 16, 90Jul 16, 91[A41C]
5007899 Drive unit adapted for use with manual piston pumpExpiredFeb 29, 88Apr 16, 91[A61M]
4964851 Battery-powered breastpumpExpiredMar 23, 89Oct 23, 90[B61M]
4929229 Breastpump having improved valve mechanismExpiredNov 30, 88May 29, 90[A61M]
4857051 BreastpumpExpiredMay 22, 87Aug 15, 89[A61M]
4794915 Method for inducing uterine activity through nipple stimulationExpiredJan 30, 87Jan 03, 89[A61H, A61M]

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