Legal Opinion
Masonite Corp. v. Celotex Co.
District Court, D. Delaware
Decided October 19, 1932No. 871PublishedCited by 2 opinions
1Opinion of the CourtNields, J.
In this patent suit Masonite Corporation charges the Celotex Company with infringement of letters patent 1,663,505 granted March 20, 1928, to William H. Mason on his application filed September 18, 1925. The patent relates to hard, grainless fiber products and the process for making same, and was assigned to plaintiff.
*495The defenses are (1) noninfringement, and (2) that, if the claims in suit are given a construction broad enough to include either the process used or the product made by defendant, then they are invalid.
Plaintiff manufactures a hard board, designated “Presdwood,” under this…
2Cases cited3 opinions
- I. T. S. Rubber Co. v. Essex Rubber Co.Supreme Court of the United States · 1926
- Smith v. Magic City Kennel Club, Inc.Supreme Court of the United States · 1931
- Weber Electric Co. v. E. H. Freeman Electric Co.Supreme Court of the United States · 1921
3Cited by2 opinions
- United States v. Masonite Corp.Supreme Court of the United States · 1942
- Masonite Corp. v. Celotex Co.Court of Appeals for the Third Circuit · 1933