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. 01, 1977
Filed:
Aug. 07, 1975
Applicant:
Inventor:
Edward N Caldwell, Knoxville, TN (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01G / ; A01G / ;
U.S. Cl.
CPC ...
47 2 / ; 47 19 ; 47 29 ; 49 31 ; 98-1 ; 160-6 ; 160373 ; 236 49 ;
Abstract
A cold frame for providing an environment conducive to the growing of plants having walls and a flexible, light-transmitting cover member which is flexed to form a ventilation opening. The cover member is flexed manually or by means responsive to the temperature of the interior of the cold frame.