Sub-series 6. Patent Case Books, 1933-1968
Scope and Content
The BetzDearborn, Incorporated Records contain the corporate records of BetzDearborn, Incorporated. The collection's contents mainly document the history of BetzDearborn's two corporate ancestors: Betz Laboratories, Incorporated and Dearborn Chemical Company. The collection is arranged into the following six series:
- Betz Laboratories, Incorporated Files
- Dearborn Chemical Company Files
- Audio-Visual Materials
- Oversized Materials
- Artifacts
- Photographic Materials
Dates
- Creation: 1933-1968
Sub-series Description
Arranged alphabetically by subject, this sub-series contains Dearborn Chemical Company's patent case books. They list Dearborn's abandoned American and foreign patent applications that were filed between 1933 and 1968. They also list patents that Dearborn allowed to expire and Dearborn foreign patents that were still active during this time period.
The Patent Case Books provide a certain amount of documentation regarding the American and foreign legal processes through which Dearborn Chemical Company applied for patents. They also provide some information regarding why Dearborn chose to abandon patent applications and why the firm allowed certain patents to expire.
Repository Details
Part of the Science History Institute Archives Repository
315 Chestnut Street
Philadelphia PA 19106 United States
215.873.8265
215.873.5265 (Fax)
reference@sciencehistory.org