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:
Jan. 12, 1988
Filed:
Oct. 30, 1985
Applicant:
Inventors:
Harry C Hopkins, Williamston, NC (US);
Joseph K Power, Alpine, AL (US);
Assignee:
Hopkins International, Williamston, NC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G08B / ;
U.S. Cl.
CPC ...
340574 ; 340689 ;
Abstract
A portable personal alarm which has a small size and achieves high sound levels utilizes the overdriving of a miniature buzzer. In order to reduce the likelihood of damage to the buzzer and create a more terrifying and noticeable sound, the alarm tone is pulsed.
Hopkins, Harry. (1988). Personal alarm (U.S. Patent No. 4719454). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4719454
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile