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. 17, 1976
Filed:
Aug. 14, 1972
Applicant:
Inventor:
Stephen S Dashew, Los Angeles, CA (US);
Assignee:
Interform Inc., Compton, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B28B / ;
U.S. Cl.
CPC ...
264 31 ; 249 / ; 264335 ; 425437 ;
Abstract
A device for sealing the air hole in a concrete form while concrete is poured over the form, including a cap of resilient material having a dome-like top and a cruciform shaft extending from the concave side of the top for reception in the air hole of the form. When the dome is pressed down to form a dimple therein, the fact that the dimple remains indicates that the shaft is firmly seated in the air hole.