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In the United States Patent and Trademark Office
Patent No.:
Issued:
Patentee(s):
Ser. Nr.:
Filed:
Submission of Maintenance Fee
United States Patent and Trademark Office
P.O. Box 979070
St. Louis, MO 63197-9000
Sir:
Enclosed is the following maintenance fee for the above patent: this fee is for a n large entity n small entity,
since small-entity status was filed in connection with the above application and small-entity status is still proper.
n 3.5 year fee; $ ; due 3.0 to 3.5 years after issue; covers years 4.0 thru 8.0.
n 7.5 year fee; $ ; due 7.0 to 7.5 years after issue; covers years 8.0 thru 12.0.
n 11.5 year fee; $
; due 11.0 to 11.5 years after issue; covers years 12.0 thru expiration.
n Also enclosed is a surcharge of $ (total enclosed $ ) since this fee is
being filed in the six-month grace period after the above due period.
Very respectfully,
Either Patentee/Assignee
Address
Phone
Certificate of Mailing or Faxing
I certify that I will:
■■
mail this correspondence with the U.S. Postal Service as First Class Mail in an envelope together with
a check or PTO-2038 (Credit Card Payment Form), addressed to “United States Patent and Trademark
Office, P.O. Box 979070, St. Louis, MO 63197-9000”
■■
fax this correspondence together with a PTO-2038 (Credit Card Payment Form), to the U.S. Patent and
Trademark Office, at 571-273-6500 on the date below.
Date: 20
, Applicant
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