Optical: systems and elements – Projection screen – Border – mask – shade – or curtain
Reexamination Certificate
2008-04-01
2008-04-01
Lee, Diane I. (Department: 2851)
Optical: systems and elements
Projection screen
Border, mask, shade, or curtain
C359S443000, C359S896000, C348S836000, C353S119000
Reexamination Certificate
active
11131757
ABSTRACT:
A screen assembly is disclosed, wherein the screen assembly includes a frame including a screen retention section configured to receive and retain the screen, wherein the screen retention section includes a channel configured to receive an edge of the screen, and a screen retaining member disposed at least partially within the channel between the screen and a first side of the channel, wherein the screen retaining member biases the screen against a second side of the channel to secure the screen in the screen retention section.
REFERENCES:
patent: 6252637 (2001-06-01), Brock
patent: 6717627 (2004-04-01), Senkler
patent: 2003/0188500 (2003-10-01), Voegele
patent: 2004/0094906 (2004-05-01), Gentemann et al.
patent: 2004/0212881 (2004-10-01), Peterson et al.
Alleman Hall McCoy Russell & Tuttle LLP
Cruz Magda
InFocus Corporation
Lee Diane I.
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