General Information by Subject - C
A B C D E F G H I J L M N O P R S T U
-C-
| Subject | Telephone | Fax | TTY |
|---|---|---|---|
| Cancellations, Trademarks | 571-272-8500 | ||
| Registration (Trademark Trial and Appeal Board) | 571-272-5600 | 571-273-0110 | |
| CD and DVD-ROM Products | |||
| Central Reexamination Unit | 571-272-7705 | 571-273-9900 | |
| Certificates of Correction, Patents | 703-756-1814 | 571-273-8300 | |
| Certificates of Correction, Trademarks | 571-272-9500 | ||
| Certification Services | 800-972-6382 571-272-3150 |
571-273-3250 | |
| Change of Address | |||
| Attorney Roster | 571-272-4097 | ||
| Issued Patents for File Records (Office of Public Records) |
571-272-3150 | ||
| Issued Patents for Maintenance Fee Notification | 571-272-6500 | ||
| Pending Patent Applications See Appropriate Patent Technology Center |
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| Pending Trademark Applications See Appropriate Trademark Law Office |
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| Checker Software Program Support See Patent Electronic Business Center |
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| Chemical Examining Groups
See Patent Technology Centers |
| Subject | Telephone | Fax | TTY |
|---|---|---|---|
| Classification Definitions, Patents | 703-756-1847 | ||
| Classification, International Patent Classification System (IPC) | 703-756-1847 | ||
| Classification of Goods and Services, Trademarks | |||
| General Information | 800-786-9199 571-272-9250 |
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| Specific Application See Appropriate Trademark Law Office |
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| Classification Operations | 703-756-1833 | 703-756-1629 | |
| Chemical Classification Unit (Technology Centers 1600) |
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| Chemical Classification Unit (Technology Centers 1700) |
703-756-1841 | ||
| Electrical Classification Unit (Technology Center 2100, 2600, 2800) |
703-756-1841 | ||
| Electrical Classification Unit (Technology Center 3600) |
703-756-1837 | ||
| Mechanical Classification Unit (Technology Center 3700) |
703-756-1846 | ||
| Mechanical Classification Unit (Technology Center 2900) |
703-756-1843 | ||
| Classification Support | 703-756-1833 | 703-756-1629 | |
| Data Control Division | 703-756-1833 | 703-756-1629 | |
| Editorial Division | 703-756-1847 | 703-756-1626 | |
| Classification, US Patent Classification System (USPC) | 703-756-1847 | ||
| Complaints Regarding Invention Promotion Firms | 866-767-3848 | ||
| Concurrent Use Proceedings, Trademarks | 571-272-8500 | ||
| Congressional Liaison See Administrator for Policy and External Affairs, Office of the |
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| Copies | |||
| Advance Orders of Patent Soft Copies, Non-Receipt | 888-786-0101 571-272-4200 |
571-273-8300 | |
| Copies of Patent and Trademark Office Documents (Certified or Uncertified) |
571-272-3150 | 571-273-3250 | |
| Foreign Patents | 571-272-3547 | 571-273-0225 | |
| Subclass Subscriptions, Patent (copies of every patent issued every Tuesday for a particular subclass) |
888-786-0101 571-272-4200 |
571-273-8300 | |
| Title Records (for applications and registrations) | 571-272-3150 | 571-273-3250 | |
| Copyright Information - United States Copyright Office | 202-707-3000 |
202-707-6737 |
|
| Copyright Office Forms and Publications Hot Line | 202-707-9100 | ||
| Copyright Office Fax-on-Demand | 202-707-2600 | ||
| Correction of Applications for Patent | 571-272-4200 | ||
| Correction, Patents See Certificates of Corrections, Patents |
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| Correction, Trademarks See Certificates of Corrections, Trademarks |
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| Customer Number, Electronic Business Center | 866-217-9197 571-272-4100 |
571-273-0048 | |
| Customer Window for Certain Patent-Related Correspondence | |||
| Location: Randolph Building 401 Dulany St. Alexandria, VA 22314 Hours: 8:30 a.m. to 12 midnight, Monday to Friday (except Federal holidays) |
