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:
Feb. 28, 1989
Filed:
Jul. 20, 1988
George W Burkstrand, Columbia Heights, MN (US);
Lowell E Burkstrand, Braham, MN (US);
Side Step Inc., Columbia Heights, MN (US);
Abstract
Apparatus for ascending scaffolding (10). The apparatus includes a ladder (24) having an inner upright (26) which is pivotally mounted with respect to an upright (20) of an end frame (12) of the scaffolding (10). The ladder (24) is disposed for pivoting between a retracted position, wherein the latter (24) overlies the end frame (12) of the scaffolding (10) to which it is attached, and an extended position, wherein the ladder (24) is pivoted, typically, 180.degree. relative to the retracted position.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile