A collection of letters. Examples are: a large packet of letters (Mar. 1960 – May 1961) from Paul N. Critchlow (Office of Patent Counsel, Navy Electronics Laboratory), Patrick J. Young, Harold V. Stickel, Congressman Wilson, Harold W. Swires & Ralph D. McClain re/ Mr. Young’s difficulty in obtaining a Patent for his “process for recleaning contaminated mercury;” letters (5/61) from Patrick Young & Raymond G. Wakefield re/ more support for Mr. Young’s recleaning proposal; a letter (5/22/61) from Mr. Young to Patent Counsel Paul Critchlow re/ protesting the Patent examiner’s rejection of his patent for mercury cleaning; letters (May &June 1961) re/ more comments on the struggle to obtain a patent by Patrick Young; a letter (6/21/61) from Mr. Young to Congressman Wilson and attached 7 page copy of Paul N. Critchlow, “Navy Case No. 30,596 IN THE UNITED STATES PATENT OFFICE In re application of PATRICK J. YOUNG Serial No. 30 . . . Filed: May 19, 1960 For: Process For Cleaning Contaminated Mercury AMENDMENT.”