Document b5M54Nvdwr9D52n9qZBqnkVYy

Of f ic e o f t h e Yic&PBEaiDsafr 25 Broadway, New York November 20, 1929. Hr. Janes ft. Laist, Pennte, Davis, Karvin & Ednoncs, 165 Broadway, New York City. Ret Jhhnson et al Application Serial No. 178, 552 Fori METHOD 0~ rnoDUCINC liillTE LEAD Dear Slri I as sending you herewith copy of letter fron Mr. Case together with original letter from Mr. Knox, with attached affidavit prepared in connection with the above patent applica tion, as requested in your letter of October 16th. lours very truly, G Enc. N11310 PNYC00008472 INTERNATIONAL SMELTING AND REFINING COMPANY r. O- CASE MANASCR OF MIDWEST DISTRICT November 17, 1939 ZO N.WACRER DRIVE CHICAGO, ILLINOIS Mr. Frederick Laist, Vice-President, International Smelting and Refining Company, 25 Broadway, New York City. Dear Hr. Laist: Attached hereto ycu will find the original -ind one copy of a letter from Mr. Knox and an affidavit, covering the Johnson et al. Application, Serial No. 178,352, For: Method of Producing White Lead, k'.'e believe that these documents are in order and as desired by Mr. James Wr. Laist. FOC:vlc in duplicate enclosures Very truly youn 0 N11310.01 PNYC00006<t73 Norember 16th, 1939 Mr. 1, 0. Case Manager of Midwest Dietriot International Smelting and Refining Co., 20 North Weaker Drive Chisago, Illinois Re: Johnson at a] illoatlon, vNo. 178,35* !pr: Uethod " educing Whiti lad___ Dear Sir:- Attached please find. n affidavit prepared for filing in connection with the above apted/i*pteat Applieation. This affidavit was requested by Mr. iffcas IT. Laist in his letter of October 19th, end i^'ffilE^^prwehdeh to the fin of Panels, Davis, Marvin and Edmondpy'for th^ettentian\of Ur. Jamas V. Laist. This letter will also/qerve to anenr Kr.'laiat's latter of November 10th. The affidavit has b/Mn nptarlced and la ready for filing. However, I was noVsure of tty exact form end subject matter re quiredtff3*eotiysWt_ifl that the discovery of this application conatfCufed an invantTozrrand not merely a novel procedure. I will, therefore, be pleased to make any changes suggested, should the at tornMrs decide turn the affidavit should be redrafted. Toura very truly, VJK/mm ene. W. J Knox White Lead Plant Superintendent ^ll3l0.02 PNircood'oeqV;