Pat pend .86 on a 14k gold ring does not refer to the gold content. It likely indicates that the ring design or certain features of the ring are patented or patent pending. The ".86" may refer to the year the patent was filed or it could be a design code.
A patent case involves copyrighted or patented material. The word patent can also mean the subject matter is obvious on its face.
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it is wide open
One type of patent is the design patent, which protects "ornamental characteristics." If the design is sufficiently innovative, it may receive a design patent.
It means it is open and functioning. patent=functional.
"Patent" in this case means obvious or apparent. If you show patent dereliction of duty, you are obviously not doing your job.
"Patent" in medical terms means open, as a vessel. The opposite is "occluded."
it means that you have a gross patent and need a new one
"Patent" in medical terms means open, as a vessel. The opposite is "occluded."
925 on a ring mean
The word is used in reference to the commercial success potential of a patent or patent pending invention.