Editing DynaTAC (section)

==Publications==
[https://patents.google.com/patent/US3906166A/, U.S. Patent 3,906,166], September 16, 1975 for a [[Radiotelephone|Radio Telephone System]] for the first cell phone was granted by Martin Cooper, Richard W. Dronsurth, Albert J. Leitich, Charles N. Lynk,<ref>[http://www.brophy.net/weblog/images/letter_to_middle_school.jpg Letter to Middle Schooler, granddaughter of Chuck Lynk, co-inventor of cell phone]{{dead link|date=February 2018 |bot=InternetArchiveBot |fix-attempted=yes }}, by James J. Mikulski, co-inventor of first cell phone April 3, 1973</ref> James J. Mikulski,<ref name="mikulski">[http://www.brophy.net/weblog/images/obit_-_mikulski_heading.jpg Comments by Albert (Jim) Mikulski, ''co-inventor of first cell phone,''  June 6, 2009, Chicago Tribune (a):''"Mitchell known as a hands on manager"'' (b): (c): (e): (f): (g): ''"willing to give credit to those who worked in the trenches."'' (c): (d): ''"I remember his delegating his task as...GM to work in the Applied Research Lab and in give and take with the engineers as the Federal Trade Commission (FTC) docket 18262 that would shape Motorola's future...in the 1970s''."  (h): ''Mitchell team member'', (i) ''patent holder''] {{webarchive|url=https://web.archive.org/web/20120207082519/http://www.brophy.net/weblog/images/obit_-_mikulski_heading.jpg |date=February 7, 2012 }}</ref><ref name=discontinuance>[http://www.brophy.net/weblog/images/discontinuous_innovation_-_case_study_cell_phone.jpg Discontinuance of Product Line, Business Case Study Cell Phone]{{dead link|date=February 2018 |bot=InternetArchiveBot |fix-attempted=yes }}; {{cite journal|last1=Macher|first1=Jeffrey|last2=Richman|first2=Barak D.|title=Organizational Responses to Discontinuous Innovation: A Case Study Approach |journal=International Journal of Innovation Management|volume=7|issue=1|year=2004|ssrn=485282}}</ref> John F. Mitchell, Roy A. Richardson, and John H. Sangster.

Two names were botched in the original filing; Leitich's surname was erroneously omitted, and Mikulski's first name was omitted. The original document was refiled by Motorola's legal staff, but has not yet been identified.

The seeds of the idea for a portable cell phone can be traced to Mikulski, which were rejected by Mitchell for lack of sufficient business justifications. It is rumored that when Mitchell suddenly recognized during an attempted phone call that his 400&nbsp;MHz phone had inherent limitations, he immediately reversed his previous decision and championed the portable cell phone concept.<ref name=discontinuance/>