This patent is of a capsule that allows the user to defend themselves by chewing the capsule and squirting the acid into the attackers eye. A lot more work than usual but it is patentedMyPatentAssets — Patent Number: 4,925,437
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Easily access free patent information, as well as additional paid-for information, in the ultimate patent data dashboard by searching by the patent number! This is a patent for a: Charge control agent and toner for developing electrostatic imagesPat2pdf
Search for patents and download free patent PDF files. Find a variety of searchable and annotated patent PDFs.Robotic Vacuum
This patent allows the user to use their own current vacuum and turn it into a self cleaning machine!