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Bentley Historical Library records: 1919 - 2014 (Majority of material found within 1970 - 2002)
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Container / Location Title
 
Patents and Trademarks
Box   4  
Correspondence 1952-1979
Box   4  
Harness, Dickey & Pierce national infringement 1958-1961
Box   4  
Bath enclosure application (case no.3) 1950
Box   4  
Bath enclosure application July 21, 1950
Box   4  
Towel bar application July 1950
Box   4  
Trademark registration on N/S application August 2, 1954
Box   4  
Trademark ("National") (603,823) March 29, 1955
Box   4  
Trademark ("N/S") (603,824) March 29, 1955
Box   4  
Shower door handle application (case no.6) 1955
Box   4  
Bath enclosure patent (2,743,795) May 1, 1956
Box   4  
Shower door handle application August 31, 1956
Box   4  
Patent (2,783,860) March 5, 1957
Box   4  
Bath enclosure patent (Canada) May 7, 1957
Box   4  
Shower door handle patent (181,822) December 31, 1957
Box   4  
Trademark ("Mirrall") (Canada) September 19, 1958
Box   4  
Trademark ("Mirrall") (United States) September 8, 1959
Box   4  
Shower door handle patent (2,904,368) September 15, 1959
Box   4  
Trademark ("Spraymaster") (United States) December 15, 1959
Box   4  
Trademark ("Spraymaster") (Canada) May 27, 1960
Box   4  
Towel bar patent (2,940,719) June 14, 1960
Box   4  
Patent (3,074,077) January 22, 1963
Box   4  
Patent (3,075,255) January 29, 1963
Box   4  
Rolling panel closure means patent (Canada) March 10, 1964
Box   4  
Trademarks ("National," "N/S") renewal May 28, 1975
Box   4  
Trademark ("Mirrall") renewal (684,626) September 8, 1979
Box   4  
Trademark ("Spraymaster") renewal May 5, 1980
Box   4  
Bath enclosure application, miscellaneous undated
Box   4  
Rolling panel closure means application undated
Box   4  
Sliding panel mountings undated