USD268782SExpiredUtility

Combined supporting framework and filter housings of a multiple stage air filtering system

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Assignee: ENG AIR DIVISION OF THERMAL COMPONENTS INCPriority: Apr 7, 1980Filed: Apr 7, 1980Granted: Apr 26, 1983
Est. expiryApr 7, 2000(expired)· nominal 20-yr term from priority
Inventors:Donald F. Minnick, Jr.
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PatentIndex Score
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Cited by
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References
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Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a combined supporting framework and filter housings of a multiple stage air filtering system, as shown and described.

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