
As a general matter, you are not entitled to storage fees. However, you can send the supplier a letter saying that, if their property is not picked up by a reasonable date your specify, it will be deemed to be abandoned. After reasonable notice, if you receive no response, you can dispose of the property.
Other Answers
What does the contract you signed with the company say? This is akin to a tenant vacating a rented property and leaving behind all their furniture. At a certain point, you have a right to remove the equipment. If you do so, you should take reasonable steps to put the equipment in storage and when the owner returns to pick it up, make sure they pay your costs of removing and storage.
You should write to them and give them 10 days before you tell them that you will put it in storage and charge them for it. Or you might give them 15 days and tell them if they don't claim it you will consider it to be abandoned property and sell it. The first route probably is the safest one for you to take. Make sure you send them these notices by registered mail return receipt requested.
Michael Caldwell
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