3 trademarks were found for owners matching the name Donald Stewart Clarke.
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1 TM: 654584
Desc: Aero-Quest
Owner: Donald Stewart Clarke
Class: 28
Status: Lapsed: Registration fee not paid on time
2 TM: 852570
Desc: MBM

Owner: Rosemary Trotta, Donald Stewart Clarke
Class: 35
Status: Removed
Not renewed: Renewal fee not paid
3 TM: 852571
Desc: 3100

Owner: Rosemary Trotta, Donald Stewart Clarke
Class: 4
Status: Lapsed: Not accepted