.~ Illusion caused by abnormal interior building structure appearing normal
DEFINITION
Classification: 472/74
Illusion caused by abnormal interior building structure appearing normal:
(under subclass 57) Amusement device wherein the illusionary effect created by the device involves a person entering into the inner portion (e.g., a furnished room) of an apparently conventionally constructed architectural housing arrangement (i.e., a building); and the person either physically experiences (e.g., the person has difficulty walking across the floor of a room) or visually observes (e.g., the person observes water running uphill) an event or an occurrence that, in his mind, cannot be possible; whereby the person experiencing or observing the illusion is unaware that the construction of the housing arrangement has been modified or altered to create the illusion.
(1) Note. An example of a type of modified building structure included here would be an interior room of an otherwise conventionally built house having its floor sloped (i.e., forming an angle relative to the plane of the horizon), its ceiling conventionally parallel to the floor, and its walls conventionally at right angles to the floor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
48, for an amusement device comprising a walkway having a movable floor or stair step, which device generally includes some building structure, and see the Search Class note thereunder.
136, for an amusement building structure or a part thereof,
which building structure does not create an illusionary effect, and see the Notes thereunder.
