Portable screen assembly

Details Portable screen assembly Portable screen assembly

2008-05-15

2009-12-22

Mahoney, Christopher (Department: 2862)

Optical: systems and elements

Projection screen

C359S461000

Reexamination Certificate

active

07636194

ABSTRACT:
A portable screen assembly includes: a casing having an opening extending in a longitudinal direction on the upper surface thereof, and formed by a pair of separable case members that extend in the longitudinal direction; a spring-biased roll rotatably mounted in the casing; a screen wound around the spring-biased roll in a storage position and extended from the opening in use; a top bar fixed to one end of the screen which is used as a cover body to close the opening in the storage position; and an extendable column having one end erectably pivoted from a center part of a side face of the casing to hold the screen in a stretched state.

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Supplementary European Search Report (in English language) issued Nov. 5, 2008 in European Application No. C4728911.1.
Notification of Transmittal of Duplicate of Demand for Patent Invalidation Trial for Japanese Patent No. 4157908 dated Apr. 28, 2009 (with English translation).

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