Number | Name | Date | Kind |
---|---|---|---|
2531958 | Williams, Jr. et al. | Nov 1950 | |
3331946 | Bilbro | Jul 1967 | |
3535494 | Armbruster | Oct 1970 | |
3547725 | Shomphe et al. | Dec 1970 | |
3807458 | Royston | Apr 1974 | |
3853443 | Grillos | Dec 1974 | |
3876355 | Baughmann | Apr 1975 | |
3900654 | Stinger | Aug 1975 | |
4281238 | Noma et al. | Jul 1981 | |
4329569 | Hjortsberg et al. | May 1982 | |
4384905 | Gros | May 1983 | |
4429213 | Mathieu | Jan 1984 | |
4447377 | Denton | May 1984 | |
4523141 | Thomas et al. | Jun 1985 | |
4549069 | Oge | Oct 1985 | |
4558210 | Leary | Dec 1985 | |
4925605 | Petronko | May 1990 | |
4930543 | Zuiches | Jun 1990 | |
5236765 | Cordia et al. | Aug 1993 | |
5286952 | McMills et al. | Feb 1994 |
Entry |
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"Heated Pumping Lines," VacuComp HPS Division MKS Instruments, Inc., Series 43 (Apr. 1994). |
"Silicone Rubber Heaters Offer Imaginative Solutions to Design Problems," Jim Ebert, Lonny Aylsworth, Ray McBee, Watlow Electric Mfg. Co., Reprinted from Design News, Oct. 22, 1984. |
Descriptions of Seven Prior Art Products. |