USD557280SExpiredUtility
Internal combustion engine
Est. expiryMar 30, 2026(expired)· nominal 20-yr term from priority
Inventors:Masayuki Osumi
42
PatentIndex Score
4
Cited by
13
References
1
Claims
Claims
exact text as granted — not AI-modifiedCLAIM
The ornamental design for an internal combustion engine, as shown and described.Join the waitlist — get patent alerts
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