games that have become public-domain

[veum@math.arizona.edu (Eric Veum)]

I have many only games and was wondering if
I should upload them to apple 2 ftp sites.
Would anyone know whether these old games
are or are not public domain?  I would like
to share them with people if they are, and I 
do not find them at any of the current apple2
ftp sites.  

Eric

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Air Cars
Alien Typhoon
Autobahn
Ball Blaster
Beach Head
Big Mac Attack
Bolo 
Bug Attack
Buzzard Bait
Carnival
Cannon Ball Blitz
Ceiling Zero
Centipede
Choplifter
Congo
Defender
Diamond Mine
Dig Dug
Dogfight
Eamon
Falcons
Firebird
Flip Out
Frazzle
Frogger
Galaxian
Galaxy
Gold Rush
Head On
Hell Storm
Horizon V
King Tut's Revenge
Lifelike
Lunar Leeper 
Mario Brothers
Moon Patrol
Mouse Attack
Mr. Cool
Neptune
Night Mission
Nightmare
One on One
Outworld
Pac-Man
Pitfall II
Raster Blaster
Rev. Rabbit
Robotron
Serpentine
Snack Attack
Snapper
Sneakers
Space Quark
Space Warrior
Spys Demise
Star Thief
Stargate
Swashbuckler
Star Trek
Suicide
Toom of Doom
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