Registered patent attorney
Charles Nissim-Sabat
Firm
Cherskov and Flavnik
Address
123 West Madison Street
Suite 400
Chicago, IL, 60602
US
Phone
Registered as
Registered patent attorney
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- Holby Matthew AbernNeal, Gerber & Eisenberg LLP
- Cassandra L. AbernathyUSPTO Reg. 75330
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Frequently asked
Frequently asked about Charles Nissim-Sabat
Is Charles Nissim-Sabat a registered patent attorney?
Yes. Charles Nissim-Sabat is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 42037). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Charles Nissim-Sabat located?
Charles Nissim-Sabat's office is in Chicago, Illinois (60602). Affiliated with Cherskov and Flavnik.
What firm does Charles Nissim-Sabat work at?
Charles Nissim-Sabat is listed as affiliated with Cherskov and Flavnik on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Charles Nissim-Sabat?
Charles Nissim-Sabat's office phone (per the USPTO public roster) is 312-621-1330. Verify availability and intake details directly with the firm before sending privileged materials.
Should I prepare anything before contacting a patent attorney?
Yes — most patent attorneys quote based on a brief. Persoona's intellectual property module generates a prior-art analysis, defensibility scorecard, and a draft USPTO filing package so you arrive with a brief, not a blank slate. Free to run.
Profile sourced from the USPTO OEDCI Practitioner Roster. Persoona did not provide, edit, or curate this data — every field is pulled directly from the public roster.