SB
"SB" is used today as part of the label in our form designations (e.g., PTO/SB/05 ). The origin of this notation is a Specimen Book (no longer in use) that included all of the forms.
Source: U.S. Patent and Trademark Office.
"SB" is used today as part of the label in our form designations (e.g., PTO/SB/05 ). The origin of this notation is a Specimen Book (no longer in use) that included all of the forms.
Source: U.S. Patent and Trademark Office.