The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 08, 1985
Filed:
Nov. 16, 1984
Eugene F Martha, Jr, North Attleboro, MA (US);
Millipore Corporation, Bedford, MA (US);
Abstract
A disposable, one-piece cap for a liquid container includes a frangible septum which allows easy penetration by a syringe needle to permit withdrawal of the liquid. The septum includes a plurality of grooves which are thinner than the thickness of the remainder of the septum to facilitate tearing of the septum as the needle penetrates. Such tearing prevents a seal from forming around the needle and thus allows air to enter the container avoiding problems associated with the formation of a partial vacuum within the container as the sample is withdrawn.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile