Number | Name | Date | Kind |
---|---|---|---|
D273984 | Vlock | May 1984 | |
430522 | Genese | Jun 1890 | |
659196 | Johnson | Oct 1900 | |
758750 | Haldeman | May 1904 | |
1119407 | Davis | Dec 1914 | |
2536669 | Thau-Jensen | Jan 1951 | |
3590486 | Brenner et al. | Jul 1971 | |
3675328 | Weissman | Jul 1972 | |
3675329 | Weissman | Jul 1972 | |
3728794 | Edelman | Apr 1973 | |
3740851 | Weissman | Jun 1973 | |
3861043 | Lieb et al. | Jan 1975 | |
3874081 | Franklin et al. | Apr 1975 | |
4060896 | Wahnish | Dec 1977 | |
4175565 | Chiarenza et al. | Nov 1979 | |
4229169 | Smith et al. | Oct 1980 | |
4234309 | Sellers | Nov 1980 | |
4259076 | Yanney | Mar 1981 | |
4268253 | Gross et al. | May 1981 | |
4276027 | Lustig | Jun 1981 | |
4290756 | Sellers | Sep 1981 | |
4348183 | Weissman | Sep 1982 | |
4349335 | Weissman | Sep 1982 | |
4365958 | Vlock | Dec 1982 | |
4397634 | Biggs | Aug 1983 | |
4431416 | Niznick | Feb 1984 | |
4468200 | Munch | Aug 1984 | |
4479783 | Weissman | Oct 1984 | |
4490116 | Deutsch et al. | Dec 1984 | |
4500296 | Friedman | Feb 1985 | |
4579532 | Lustig | Apr 1986 | |
4600392 | Weissman | Jul 1986 | |
4655711 | Weissman | Apr 1987 | |
4708655 | Weissman | Nov 1987 | |
4713004 | Linkow et al. | Dec 1987 | |
4713006 | Hakamatsuka et al. | Dec 1987 | |
4729736 | Weissman | Mar 1988 | |
4758160 | Ismail | Jul 1988 | |
4762492 | Nagai | Aug 1988 | |
4767332 | Weissman | Aug 1988 |
Entry |
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CDA Journal, "Preparing Severely Damaged Teeth", by Shillingburg, Jr., et al., Mar., 1983, pp. 85-91. |
Exhibit A--photograph of Model C-1 post made by the Parkall Company. |
Exhibit B--photograph of a post manufactured by Dentatus. |
Exhibit C--photograph of BCH post. |
Exhibit D--photograph of a post made by Parapost. |
Exhibit E--photograph of another post manufactured by Parapost. |
Exhibit F--photograph of several posts manufactured by Kurer. |
Exhibit G--photograph of a post constructed generally like that shown in U.S. Pat. No. 4,479,783 to Weissman at FIGS. 2 and 3. |
Exhibit H--photograph of a post having an external spiral thread along with a vertical vent groove. |