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Sub-series 6. Patent Case Books, 1933-1968

 Sub-Series

Scope and Content

From the Collection:

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:

From the Collection:
  1. Betz Laboratories, Incorporated Files
  2. Dearborn Chemical Company Files
  3. Audio-Visual Materials
  4. Oversized Materials
  5. Artifacts
  6. 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

Contact:
315 Chestnut Street
Philadelphia PA 19106 United States
215.873.8265
215.873.5265 (Fax)