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-

SubjectTelephoneFaxTTY
Cancellations, Trademark Trial and Appeal Board571-272-8500  
Registration (Trademarks)571-272-5600571-273-0110 
CD and DVD-ROM Products   
Central Reexamination Unit571-272-7705571-273-9900 
Certificates of Correction, Patents703-756-1814571-273-8300 
Certificates of Correction, Trademarks571-272-9500  
Certification Services800-972-6382
571-272-3150
571-273-3250 
Change of Address   
Attorney Roster571-272-4097  
Issued Patents for File Records
(Office of Public Records)
571-272-3150  
Issued Patents for Maintenance Fee Notification571-272-6500  
Pending Patent Applications
See Appropriate Patent Technology Center
   
Pending Trademark Applications
See Appropriate Trademark Law Office
   
Checker Software Program Support
See Patent Electronic Business Center
   
Chemical Examining Groups
See Patent Technology Center
   

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SubjectTelephoneFaxTTY
Classification Definitions, Patents703-756-1054  
Classification, International Patent Classification System (IPC)703-756-1054  
Classification of Goods and Services, Trademarks   
General Information800-786-9199
571-272-9250
  
Specific Application
See Appropriate Trademark Law Office
   
Classification Operations703-756-1833703-756-1629 
Chemical Classification Unit
(Technology Centers 1600)
   
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 703-756-1833703-756-1629 
Data Control Division703-756-1833703-756-1629 
Editorial Division703-756-1054703-756-1626 
Classification, US Patent Classification System (USPC)703-756-1054  
Complaints Regarding Invention Promotion Firms866-767-3848  
Concurrent Use Proceedings, Trademarks571-272-8500  
Congressional Liaison
See Policy and International Affairs, Office of the
   
Copies   
Advance Orders of Patent Soft Copies, Non-Receipt888-786-0101
571-272-4200
571-273-8300 
Copies of Patent and Trademark Office Documents
(Certified or Uncertified)
571-272-3150571-273-3250 
Foreign Patents571-272-3547571-273-0225 
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)571-272-3150571-273-3250 
Copyright Information - United States Copyright Office202-707-3000 

202-707-6737

Copyright Office Forms and Publications Hot Line202-707-9100  
Copyright Office Fax-on-Demand202-707-2600  
Correction of Applications for Patent571-272-4200  
Correction, Patents
See Certificates of Corrections, Patents
   
Correction, Trademarks
See Certificates of Corrections, Trademarks
   
Customer Number, Electronic Business Center866-217-9197
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)
   

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