USD328003SExpiredUtility

Preconditioning cylinder

31
Assignee: EXTRU TECH INCPriority: May 30, 1989Filed: May 30, 1989Granted: Jul 21, 1992
Est. expiryMay 30, 2009(expired)· nominal 20-yr term from priority
Inventors:Kenneth E. MatsonErnest L. Keehn
31
PatentIndex Score
2
Cited by
14
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a preconditioning cylinder, as shown and described.

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