U.S. patent expirations due to the nonpayment of the three and a half year maintenance fee
- 31 December 1988
- journal article
- Published by Elsevier in World Patent Information
- Vol. 10 (3) , 191-198
- https://doi.org/10.1016/0172-2190(88)90006-3
Abstract
No abstract availableKeywords
This publication has 1 reference indexed in Scilit:
- ReplyThe Journal of Pediatrics, 1980