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:
Dec. 14, 1993
Filed:
Jan. 22, 1993
Applicant:
Inventor:
Chul Park, Rockville, MD (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62B / ;
U.S. Cl.
CPC ...
280-524 ; 280644 ; 280 42 ; 280650 ; 280 47371 ;
Abstract
A carriage for traversing irregular surfaces, including a pair of extendable handles, a pair of skids to be operated by extending the handles, and a brake system for stopping the carriage on the flat floor of one of stairs whereby the carriage can smoothly slide along the traversed surfaces.