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:
Oct. 07, 1980
Filed:
Nov. 30, 1978
Applicant:
Inventor:
John N Roche, Greenville, PA (US);
Assignee:
R. D. Werner Co., Inc., Greenville, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E06C / ;
U.S. Cl.
CPC ...
182178 ;
Abstract
There is disclosed herein a sectional ladder having at least a pair of ladder sections adapted to be slideably moved relative to the other for extension or retraction, one section carrying means adapted to engage a latch mounted on the other section for automatically locking the separate sections together in a selected locked position.