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:
Mar. 01, 2011
Filed:
Sep. 24, 2001
Applicants:
Nigel Harrison, Cambridgeshire, GB;
Daniel Godfrey, Cambridgeshire, GB;
Inventors:
Nigel Harrison, Cambridgeshire, GB;
Daniel Godfrey, Cambridgeshire, GB;
Assignee:
Pfizer Limited, Sandwich, Kent, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 11/00 (2006.01); A61M 15/00 (2006.01); F16K 31/02 (2006.01); A23P 1/00 (2006.01); F16F 1/18 (2006.01); H01H 1/10 (2006.01); B28B 5/00 (2006.01); B28B 11/08 (2006.01); B27N 3/10 (2006.01); B29C 45/14 (2006.01); B29B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is provided a pressure-responsive device () suitable for use in an inhaler, the pressure-responsive device () comprising a closed frame () over which is fixed a membrane (), a tongue () being supported on the membrane (). Two upstanding wings () are integrally moulded with the tongue () and incorporate square apertures (). A method of manufacturing the pressure-responsive device () is also provided.