Pong, the Atari creation that launched the computer game craze, came with these instructions: "Avoid missing ball for high score."
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| Number | Title | Issue Date |
| 7293530 | Lightweight, portable and expandable small animal enclosure This invention comprises a series of lightweight, easily transportable identical frame pieces attached together to form an expandable pet enclosure that can be assembled into a multiplicity of configurations, optionally with a floor or a roof that comprises the same... | 11/13/2007 |
| 6923195 | Skeleton frame assembly for a tent A tent skeleton frame assembly includes vertical poles, each of which defines a first side and a second side transverse to the first side, and includes a first vertical rod, a second vertical rod spaced apart from and aligned with the first vertical rod along the fi... | 08/02/2005 |
| 6820629 | Leg assembly for a canopy A leg assembly includes at least three upright support members and at least three horizontal link members. Each of the support members includes an adjacent pair of planar first and second leg frames that are connected pivotally to each other, and at least one connec... | 11/23/2004 |
| 6591849 | Foldable frame structure A portable shelter is disclosed. The portable shelter includes a canopy and a frame supporting the canopy. The frame of the portable shelter includes a plurality of support poles and a plurality of cross poles. Each cross pole of the portable shelter is p... | 07/15/2003 |
| 6178978 | Children's activity and entertainment enclosure A children's activity and entertainment enclosure includes a housing a plurality of legs attached to the housing to support the housing at a selected elevation above a support surface and a flexible sheet material covering the housing and at least upper p... | 01/30/2001 |
| 5947139 | Shade stand with swirling type canopy A swirling type fabric canopy is affixed on an upright mast which can be incrementally rotated on a base to protect a person in one position while the sun travels during daylight. The swirling type canopy can be rotated from right-handed shading to left-h... | 09/07/1999 |
| 5918615 | Portable shelter A portable collapsible shelter having particular use as a hunting blind. The shelter includes a plurality of generally C-shaped frame members and the upper ends of the frame members are connected to an upper connecting plate, while the lower portions of t... | 07/06/1999 |
| 5622197 | Canopy A canopy assembly (10) comprising a canopy fabric (20) and furling means (40) extending between a pair of supports (30). The furling means (40) runs through the canopy fabric such that the canopy may be unfurled from both sides of the furling means simult... | 04/22/1997 |
| 5603343 | Passageway for loading and unloading aircraft A plurality of independent U-shaped frame sections are articulately connected in an end series to form a flexible corridor. Each frame section is U-shaped being open at the bottom and supported on a wheel assembly and covered by a weatherproof fabric roof... | 02/18/1997 |
| 4926892 | Temporary enclosure structure One embodiment of a temporary enclosure structure includes a rear frame section and a pair of side frame sections. The rear frame section includes a pair of spaced apart tubular vertical support members and a pair of extensible tubular horizontal members ... | 05/22/1990 |
| 4685483 | Collapsible support for food screen A collapsible frame assembly for supporting a tablecloth screen in a draped configuration over dishes on a hotel serving cart comprises a pair of elongate U-shaped base members and a pair of arcuate support members hingedly attached to the respective base... | 08/11/1987 |
| 4077418 | Quickly erected back pack tent A lightweight collapsible tent structure is disclosed which can be folded into a compact "U-shaped" package readily nested around a conventional hiker's back pack thereby facilitating easy transportation through difficult terrain. This tent structure comp... | 03/07/1978 |