Registered patent attorney

John Arthur CrookIII

USPTO Reg. 30830

Address

2935 Canon Ridge Road

Castle Rock, CO, 80104

US

Phone

Registered as

Registered patent attorney

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Frequently asked

Frequently asked about John Arthur Crook

  • Is John Arthur Crook a registered patent attorney?

    Yes. John Arthur Crook is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 30830). Registration is verified against the USPTO Office of Enrollment and Discipline roster.

  • Where is John Arthur Crook located?

    John Arthur Crook's office is in Castle Rock, Colorado (80104).

  • How do I contact John Arthur Crook?

    John Arthur Crook's office phone (per the USPTO public roster) is 303-663-0788. 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.

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