Patent Attorney
John P Costello
Reg. No. 36110
Active
Not accepting new clients
Firm
Costello Law Corporation
Costello Law Corporation
Location
Roseville, CA 95661
Roseville, CA 95661
Phone
916-441-2234
916-441-2234
Registration Type
ATTORNEY
ATTORNEY
Roster
USPTO OED FY25
USPTO OED FY25
Firm and contact info reflects the FY25 roster (last updated September 25).
Attorneys may have changed firms since then — patent filings show their current firm of record.