	US 8,777,829 C1 (12,580th)
	Method for folding film edges
Shaun Eugene Pirtle, Coweta, OK (US); Khurrum Shamsi, Tulsa, OK (US); and Robert Earl Cochlin, Chouteau, OK (US)
Filed by Paragon Films, Inc., Broken Arrow, OK (US)
Assigned to Paragon Films, Inc.
Reexamination Request No. 90/019,031, Nov. 19, 2021.
Reexamination Certificate for Patent 8,777,829, issued Jul. 15, 2014, Appl. No. 13/706,088, Dec. 5, 2012.
Application 13/490,974 is a division of application No. 12/470,238, filed on May 21, 2009, granted, now 8,221,298.
Application 90/019,031 is a continuation of application No. 13/490,974, filed on Jun. 7, 2012, granted, now 8,475,349.
Claims priority of provisional application 61/082,398, filed on Jul. 21, 2008.
Ex Parte Reexamination Certificate issued on Apr. 18, 2024.
Int. Cl. B31F 1/00 (2006.01); B31F 7/00 (2006.01); B65H 45/22 (2006.01); B65H 18/10 (2006.01)

CPC B31F 1/0016 (2013.01) [B31F 7/006 (2013.01); B65H 45/22 (2013.01); B65H 18/10 (2013.01); B65H 2301/414322 (2013.01); B65H 2301/4148 (2013.01); B65H 2701/11234 (2013.01); B65H 2701/1752 (2013.01); Y10T 428/2419 (2015.01); Y10T 428/2495 (2015.01)]

AS A RESULT OF REEXAMINATION, IT HAS BEEN DETERMINED THAT:

Claims 1-14 are cancelled.

At the time of issuance and publication of this certificate, the patent remains subject to pending reissue application number 18/440,857 filed Feb. 13, 2024. The claim content of the patent may be subsequently revised if a reissue patent is issued from the reissue application.

10. A method of producing folded edges in a film in-process, said method comprising the steps of:
separating a first idler roll from a second idler roll by a first distance;

positioning at least one folding guide between the first idler roll and the second idler roll, and

separating adjacent sections of film and inducing two folds with the folding guide, thereby causing an edge of each section of film to turn under 180° and cling to a bottom surface of the section of film.