Patent 5227038 Issued on July 13, 1993. Estimated Expiration Date: October 4, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
This invention provides a method of generating fullerenes by vaporizing carbon with the heat from an electrical arc and then condensing a soot from which fullerenes may be recovered.
Other References
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October 4, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
