Results for assignor estoppel

Pandrol USA LP v. Airboss Railway Products Inc.

Case Number: CLB0095

Date: 09.19.2005

Limitations in claim for railroad track fastening system, which require use of “adhering material” as “sole means” of adhering abrasion-resistant rail plate to rail tie, are supported by written description that discloses use of closed cell foam pad as “adhering material,” and discloses no alternative means of bonding rail plate to tie.

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