Patent US5443036 – Method of exercising a cat

Re:Patent US5443036 – Method of exercising a cat by prompt_critical on Friday October 23, 2015 @05:51AM (#10437666)

...beam of invisible light

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Re:Patent US5443036 – Method of exercising a cat by mcnamaratw on Friday October 23, 2015 @08:02AM (#10438023)

Yeah seems to me they purposely excluded visible light. Hard to see why.

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Re:Patent US5443036 – Method of exercising a cat by louisswiss on Friday October 23, 2015 @08:44AM (#10438208)

Chapeau.

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Re:Patent US5443036 – Method of exercising a cat by monochromatic on Friday October 23, 2015 @11:47AM (#10439337)

Sounds like the idea is that the beam itself is invisible, and it becomes visible once it hits something. Poorly worded though.

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Re:Patent US5443036 – Method of exercising a cat by mikeash on Friday October 23, 2015 @01:20PM (#10439955)

So you can work around this patent with a fog machine?

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