Number | Name | Date | Kind |
---|---|---|---|
3745009 | Jenkins et al. | Jul 1973 | A |
4033948 | Brown | Jul 1977 | A |
4088497 | Brown et al. | May 1978 | A |
4153463 | Lea | May 1979 | A |
4196002 | Levinson et al. | Apr 1980 | A |
4201590 | Levinson et al. | May 1980 | A |
4283487 | Lea et al. | Aug 1981 | A |
4358529 | Abele | Nov 1982 | A |
4581323 | Fisher et al. | Apr 1986 | A |
5451494 | Diehl et al. | Sep 1995 | A |
5652091 | Perry et al. | Jul 1997 | A |
5672562 | Goswami et al. | Sep 1997 | A |
5693589 | Goswami et al. | Dec 1997 | A |
5705323 | Perry et al. | Jan 1998 | A |
6297001 | Takiguchi et al. | Oct 2001 | B1 |
6455210 | Irving et al. | Sep 2002 | B1 |
Number | Date | Country |
---|---|---|
1 217 431 | Jun 2002 | EP |
2 004 380 | Mar 1979 | GB |
2 054 184 | Feb 1981 | GB |
Entry |
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U.S. pat. application Ser. No. 09/731,373 filed Dec. 6, 2000, titled An Aqueous Thermally Bleachable Composition Useful In A Photothermaographic Element, by Irving et al. |