OFFICIAL GAZETTE of the
                 UNITED STATES PATENT AND TRADEMARK OFFICE

April 3, 2001                    Volume 1245                    Number 1

                                   CONTENTS
                                                                Page

Patent and Trademark Office Notices
   Patent Cooperation Treaty (PCT) Information
   Notice of Maintenance Fees Payable
   Notice of Expiration of Patents Due to Failure to Pay
      Maintenance Fee
   Patents Reinstated Due to the Acceptance of a
      Late Maintenance Fee from 02/16/01
   Reissue Applications Filed
   Requests for Reexamination Filed
   Registration to Practice
   Reinstatement to Register
   Service by Publication
   Reclassification Alert Report
   Effective Date of the Final Rule Entitled Rules to
      Implement Optional Inter Partes Reexamination Proceedings
   Notice of Suspension
   United States Postal Service Interruption and
      Emergency in Connecticut
   Errata
   Certificates of Correction
   Summary of Final Decisions Issued by the
      Trademark Trial and Appeal Board
Special Boxes for Mail
Reference Collections of U.S. Patents Available for Public Use in
   Patent Depository Libraries
Patent Technology Centers
Condition of Trademark Applications
Reexaminations
Statutory Invention Registrations
Reissue Patents Granted (37,119)
Plant Patents Granted (11,828)
Patents Granted
   General and Mechanical (6,209,133)
   Chemical (6,210,446)
   Electrical (6,211,448)
Design Patents Granted (439,724)
Index of Patentees
Indices of Reissue, Reexaminations, Design and Plant Patents
Classification of
   Patents (Including Reissues and Reexaminations)
   Designs and Plants Applications
   Statutory Invention Registrations
Geographical Index of Residence of Inventors
   Patents (Including Reissues and Reexaminations)
   Designs and Plant Applications
   Statutory Invention Registrations
Change of Address Form
Subscription Order Form

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