USD307187SExpiredUtility

Work platform for extension ladders

Assignee: SCHAF BERNARDPriority: Sep 2, 1988Filed: Sep 2, 1988Granted: Apr 10, 1990
Est. expirySep 2, 2008(expired)· nominal 20-yr term from priority
Inventors:Bernard Schaf
43
PatentIndex Score
9
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a work platform for extension ladders, as shown and described.

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