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:
Jun. 10, 1986
Filed:
Aug. 14, 1984
Applicant:
Inventor:
James Dyson, Bath, GB;
Assignee:
Prototypes, Ltd., Bath, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L / ; B01D / ;
U.S. Cl.
CPC ...
15353 ; 15335 ; 55345 ; 55357 ; 55429 ; 55439 ; 5545 / ; 55472 ; 55DI / ;
Abstract
A vacuum cleaning appliance comprises a lower efficiency cyclone unit and a high efficiency cyclone unit connected in series. This enables both large and fine dirt particles to be dealt with.
Dyson, James. (1986). Vacuum cleaning appliance (U.S. Patent No. 4593429). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4593429
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile