Below is the "Hesson Timeline" as best as I have been able to piece it together. I may find other evidence in the future that could cause me to modify some of my assumptions.
1897: Ferdinand Feuerbach begins working for William Demuth Company.
1903-1919: Mr. Feuerbach becomes the production manger for WDC. He is credited with introducing into production the Royal Demuth and Hesson Guard lines of smoking pipes.
1919: Mr. Feuerbach leaves William Demuth Company to run the S.M. Frank & Co. pipe factory
S.M. Frank & Co. History
1920: Albert Freeman is shown as vice president of the Tobacco Salesman's Association of America.
Tobacco: An Illustrated Weekly Journal
1923-???: The Hesson Pipe Co. shares the same physical address as Roy Brigham and Company (still in existence as Brigham Pipes LTD) in Toronto Canada.
Ontario Archaeological Society Study - Starts on Page 21
1926: Canadian Patent (CA257484) filed listing William Wallace Hesson as inventor and Albert Freeman as owner.
1927: Albert Freeman files for US Patent (US1727401) which bears striking resemblances to the Hesson threaded tennon/Inner Tube system.
1927: William Demuth Company begins US production of BBB Own Make pipes (as evidenced by the printed add in this thread), many using the Hesson threaded tennon system.
1928: Albert Freeman sells US based assets of the Hesson Pipe Company to William Demuth Company. These assets include Patent(s), machinery, and some raw materials.
WDC and Albert Freeman sued in court for breaking lease agreement after sale of Hesson Pipe Company Assets
1930: WW Hesson files for US Patent (US1855800) for his Hesson Guard system. I suspect that Mr. Hesson had held a Canadian patent on this system for many years prior, but since I can't access images of all of his Canadian patents, I can't substantiate this theory.
1897: Ferdinand Feuerbach begins working for William Demuth Company.
1903-1919: Mr. Feuerbach becomes the production manger for WDC. He is credited with introducing into production the Royal Demuth and Hesson Guard lines of smoking pipes.
1919: Mr. Feuerbach leaves William Demuth Company to run the S.M. Frank & Co. pipe factory
S.M. Frank & Co. History
1920: Albert Freeman is shown as vice president of the Tobacco Salesman's Association of America.
Tobacco: An Illustrated Weekly Journal
1923-???: The Hesson Pipe Co. shares the same physical address as Roy Brigham and Company (still in existence as Brigham Pipes LTD) in Toronto Canada.
Ontario Archaeological Society Study - Starts on Page 21
1926: Canadian Patent (CA257484) filed listing William Wallace Hesson as inventor and Albert Freeman as owner.
1927: Albert Freeman files for US Patent (US1727401) which bears striking resemblances to the Hesson threaded tennon/Inner Tube system.
1927: William Demuth Company begins US production of BBB Own Make pipes (as evidenced by the printed add in this thread), many using the Hesson threaded tennon system.
1928: Albert Freeman sells US based assets of the Hesson Pipe Company to William Demuth Company. These assets include Patent(s), machinery, and some raw materials.
WDC and Albert Freeman sued in court for breaking lease agreement after sale of Hesson Pipe Company Assets
1930: WW Hesson files for US Patent (US1855800) for his Hesson Guard system. I suspect that Mr. Hesson had held a Canadian patent on this system for many years prior, but since I can't access images of all of his Canadian patents, I can't substantiate this theory.