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
     
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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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
   
Specific Application
See Appropriate Trademark Law Office
     
Classification Operations 703-756-1833 703-756-1629  
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 703-756-1833 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 Policy and International Affairs, Office of the
     
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
     
Correction, Trademarks
See Certificates of Corrections, Trademarks
     
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)
     

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