Mustang
Member
From some digging I did back in Feb 2009
These are all patents for the Snow Motor.
The US and Canadian patents appear to be of the same
basic design, but with variations.
All but the first two US patents are assigned to Armstead
Snow Motors Incorporated, but with different inventors on
some.
Note
* - Two roller style
** - Four roller style
Patent Links
United States – USPTO
**1228093 May 29 1917 Frederick R. Burch
http://tinyurl.com/27mygqq
**RE14418 Sept 27 1917 Frederick R. Burch
http://tinyurl.com/27wnxgk
**1431440 Nov 27 1920 F.R. Burch
http://tinyurl.com/23dnrq6
Canada – CIPO
**CA 220180 1922-06-27 HENRY ARMSTEAD
http://tinyurl.com/yckjffx
**CA 221629 1922-08-01 FREDERICK R. BURCH
http://tinyurl.com/2e7n2e6
*CA 276442 1927-12-20 HERMAN C. OLIVIER
http://tinyurl.com/2er9z7n
*CA 279598 1928-04-24 ALVIN F. KNOBLOCK - HERMAN C. OLIVIER
http://tinyurl.com/yaopo4q
Great Britain - European Patent Office
**GB184719 (A) 1922-08-24 Snow Motors Inc
http://tinyurl.com/2b8xoz5
*GB243225 (A) 1925-11-26 Snow Motors Inc
http://tinyurl.com/27qgwsl
*GB257062 (A) 1926-08-26 Snow Motors Inc
http://tinyurl.com/245k5bl
Regards
Art
These are all patents for the Snow Motor.
The US and Canadian patents appear to be of the same
basic design, but with variations.
All but the first two US patents are assigned to Armstead
Snow Motors Incorporated, but with different inventors on
some.
Note
* - Two roller style
** - Four roller style
Patent Links
United States – USPTO
**1228093 May 29 1917 Frederick R. Burch
http://tinyurl.com/27mygqq
**RE14418 Sept 27 1917 Frederick R. Burch
http://tinyurl.com/27wnxgk
**1431440 Nov 27 1920 F.R. Burch
http://tinyurl.com/23dnrq6
Canada – CIPO
**CA 220180 1922-06-27 HENRY ARMSTEAD
http://tinyurl.com/yckjffx
**CA 221629 1922-08-01 FREDERICK R. BURCH
http://tinyurl.com/2e7n2e6
*CA 276442 1927-12-20 HERMAN C. OLIVIER
http://tinyurl.com/2er9z7n
*CA 279598 1928-04-24 ALVIN F. KNOBLOCK - HERMAN C. OLIVIER
http://tinyurl.com/yaopo4q
Great Britain - European Patent Office
**GB184719 (A) 1922-08-24 Snow Motors Inc
http://tinyurl.com/2b8xoz5
*GB243225 (A) 1925-11-26 Snow Motors Inc
http://tinyurl.com/27qgwsl
*GB257062 (A) 1926-08-26 Snow Motors Inc
http://tinyurl.com/245k5bl
Regards
Art