Number | Date | Country | Kind |
---|---|---|---|
3-124312 | May 1991 | JPX |
This is a division of application Ser. No. 07/888,773, filed May 27, 1992 now U.S. Pat. No. 5,357,370.
Number | Name | Date | Kind |
---|---|---|---|
2492809 | Marks | Dec 1949 | |
2748659 | Geffcken et al. | Jun 1956 | |
2810324 | Marks | Oct 1957 | |
2982178 | Marks | May 1961 | |
3026763 | Marks | Mar 1962 | |
3439968 | Hansen et al. | Apr 1969 | |
3765746 | Ashley et al. | Oct 1973 | |
4219867 | Zehender | Aug 1980 | |
4464018 | Gagnon | Aug 1984 | |
4464019 | Gagnon | Aug 1984 | |
4733926 | Title | Mar 1988 | |
4827334 | Johnson et al. | May 1989 | |
5237435 | Kurematsu et al. | Aug 1993 | |
5357370 | Miyatake et al. | Oct 1994 |
Number | Date | Country |
---|---|---|
974318 | Mar 1951 | DEX |
2260092 | Dec 1972 | DEX |
61-14486 | Apr 1986 | JPX |
61-14205 | May 1986 | JPX |
63-4217 | Jan 1988 | JPX |
3-186805 | Aug 1991 | JPX |
3-226701 | Oct 1991 | JPX |
4355702 | Dec 1992 | JPX |
762678 | Dec 1956 | GBX |
Entry |
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Patent Abstracts of Japan, vol. 14, No. 94 (P-1010) 21 Feb. 1990 & JP-A-13 02 385 Published Jun. 12, 1989, English Abstract. |
Patent Abstracts of Japan, vol. 10, No. 268 (E-436) 12 ept. 1986 & JP-A-61 090 584 Published Aug. 5, 1986 English Abstract. |
Pfund, "Improved Infra-Red Polarizer," Josa, vol. 37, No. 7, Jul., 1947, pp. 558 to 559. |
Gerritsen, "Infrared Polarizer," RCA Technical Notes, No. 608, Mar. 1965. |
Bogomolov et al, "An Infrared Polarizer," Instrum. Exp. Tech. (USA), vol. 16, No. 3, p. 2, May-Jun. 1973. |
Number | Date | Country | |
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Parent | 888773 | May 1992 |