Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
171 words
A removable protective cover for the keys of a keyboard for computers, typewriters, word processors, and calculators with the keys having top portions, the said cover comprising: (a) a thin sheet of flexible material for placing over the keyboard keys; (b) the sheet having an upper surface and a lower surface, and (c) the lower sheet surface having a plurality of shallow recesses shaped for receiving and engaging the top portions of the keys, the recesses being at least substantially contained within the thickness of the sheet and having surfaces so that contact between the keys and the surfaces of the recesses resists sliding movement of the sheet away from the keys, and wherein the cover must be removed from the keyboard so that an operator can press the keys to operate the computer, typewriter, word processor or calculator, the upper surface of the cover being substantially flat and of sufficient friction so that the cover may be placed on the surface of a desk and used for a mouse pad.
Claim 2
Dependent Claim
171 words
A removable protective cover for the keys of a keyboard for computers, typewriters, word processors, and calculators with the keys having top portions, the said cover comprising: (a) a thin sheet of flexible material for placing over the keyboard keys; (b) the sheet having an upper surface and a lower surface, and (c) the lower sheet surface having a plurality of shallow recesses shaped for receiving and engaging the top portions of the keys, the recesses being at least substantially contained within the thickness of the sheet and having surfaces so that contact between the keys and the surfaces of the recesses resists sliding movement of the sheet away from the keys, and wherein the cover must be removed from the keyboard so that an operator can press the keys to operate the computer, typewriter, word processor or calculator, the upper surface of the cover being substantially flat and of sufficient friction so that the cover may be placed on the surface of a desk and used for a mouse pad.
Claim 3
Dependent Claim
45 words
The cover of claim 1 wherein the lower surface is coated with a substance to increase frictional contact with the keys, the coating being sufficient to relieve the likelihood of slipping of the cover from the keys but not to prevent removal of the cover.
Claim 4
Dependent Claim
72 words
The cover of claim 1 wherein the keyboard has a front and rear: the cover having a front which corresponds to the front of the keyboard, and a rear which corresponds to the rear of the keyboard and wherein the depth of the recesses is greater in the part of the recesses toward the front of the cover, and lesser in the part of the recesses toward the rear of the cover.
Claim 5
Dependent Claim
26 words
The cover of claim 1 wherein at least a plurality of the recesses are of uniform depth from the front to the rear of the recesses.
Claim 6
Dependent Claim
31 words
The cover of claim 1 wherein the keys have top surfaces and side surfaces, and the surfaces of the recesses contact the top surfaces and the side surfaces of the keys.
Claim 7
Dependent Claim
46 words
The cover of claim 1 wherein the sheet is treated with an anti-static material, and the lower surface is coated with a substance to increase frictional contact with the keys, sufficiently to aid in supporting the sheet on the keys without restricting the intentional removal thereof.