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:
Apr. 25, 2023
Filed:
Jul. 15, 2019
Applicant:
Barco N.v., Kortrijk, BE;
Inventors:
Assignee:
BARCO N.V., Kortrijk, BE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/56 (2006.01); G03B 21/58 (2014.01); G03B 21/625 (2014.01); G03B 21/62 (2014.01); G03B 21/60 (2014.01);
U.S. Cl.
CPC ...
G03B 21/56 (2013.01); G03B 21/58 (2013.01); G03B 21/60 (2013.01); G03B 21/62 (2013.01); G03B 21/625 (2013.01);
Abstract
A projection screen apparatus and method of making the same. The apparatus has a perimeter frame and a projection screen where the perimeter frame includes an upper frame member, a lower frame member, a left frame member and a right frame member, where at least two of the frame members have a groove or track. The projection screen has fastening edges on at least two opposite sides for fastening the projection screen to the perimeter frame by inserting the fastening edge in the groove or track of a frame member. An auxiliary element is inserted in the groove or track next to a fastening edge, to prevent the fastening edge from exiting the groove.