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PATENT APPLICATION IN THE UNITED STATES PATENT AND TRADEMARK OFFICE
In the Application of TZE CHAO Serial No.: 07/251,960 Filed: September 29, 1988 For: METHOD FOR PURIFYING Ti02
Docket NO.: CH-1361-A Group Art Unit: 113
Wilmington, Delaware June 9, 1989
PETITION FOR EXTENSION OF TIME
Hon. Commissioner of Patents and Trademarks Washington, DC 20231 sir:
Applicant hereby petitions for an extension of time in the above-identified application for
Three (3) Months to respond to the Office Action of December 12, 1988.
An extension fee as set in 37 CFR 1.17 of $430.00 is to be charged to our Deposit Account:
E. I. Du Pont de Nemours & Company 04-1925
If this fee is insuffficient or incorrect, please charge our Deposit Account accordingly.
A Notice of Appeal accompanies this petition. Respectfully submitted,
i hereby certify th.t thin correspondence i*
hemp deposited with the I'niled Stott's Postal Service
as first rl.is* mail in at) envelop** addressed to:
inissioncr of Patents and Trademark*, V ashiii>!i'>u.
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THE STAMP OF THE PATENT OFFICE HEREON A IKNOWLEDGES THE RECEIPT, ON THE DATE INDICATED, OF THE FOLLOWING:
PETITION FOR EXTENSION OF TIME
TSE CHAO
CH-1361A
SER.NO. 07/251,960
FILED: Sept. 29, 1988
jFOR: Method for Purifying T
ATTORNEY
David J. Gould
:siarge No.
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