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:
Jul. 04, 1989
Filed:
Apr. 15, 1988
Applicant:
Inventor:
Darrell Greenland, Santa Monica, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C / ;
U.S. Cl.
CPC ...
33386 ;
Abstract
A spirit level comprising a hollow rectangular bar of extruded material formed with at least one recess for receiving a bubble tube and having end caps for closing the ends of said bar; together with a sealed capsule, mountable adjacent said recess, containing a bubble tube and adjustment mechanism therefor.