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公开(公告)号:US3208991A
公开(公告)日:1965-09-28
申请号:US22270262
申请日:1962-09-10
Applicant: POLAROID CORP
Inventor: BLOUT ELKAN R , ROGERS HOWARD G , SIMON MYRON S
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42.Photographic products, processes and compositins utilizing acyl hydroquinones 失效
Title translation: 使用酰基氢醌的摄影产品,工艺和组合物公开(公告)号:US3142564A
公开(公告)日:1964-07-28
申请号:US16500662
申请日:1962-01-08
Applicant: POLAROID CORP
Inventor: BLOUT ELKAN R , SIMON MYRON S
CPC classification number: C07K5/0806 , C07K1/086 , C07K1/122 , C07K5/06052 , C07K5/0606 , C07K5/06086 , G03C5/3021 , G03C8/18
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43.Azo dyes containing a dihydroxyphenyl silver halide developing radical 失效
Title translation: 含有二羟基苯基卤化银显影基团的偶氮染料公开(公告)号:US3134764A
公开(公告)日:1964-05-26
申请号:US14597861
申请日:1961-10-18
Applicant: POLAROID CORP
Inventor: BLOUT ELKAN R , ROGERS HOWARD G
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公开(公告)号:US3003872A
公开(公告)日:1961-10-10
申请号:US70028157
申请日:1957-12-03
Applicant: POLAROID CORP
Inventor: BLOUT ELKAN R , HAAS HOWARD C , ROGERS HOWARD G
CPC classification number: G03C8/56 , Y10S430/142
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公开(公告)号:US2843481A
公开(公告)日:1958-07-15
申请号:US44436554
申请日:1954-07-19
Applicant: POLAROID CORP
Inventor: BLOUT ELKAN R , COHEN SAUL G , MILTON GREEN
CPC classification number: G02B5/3033 , G02B27/26 , G03C5/3014 , G03C7/25 , G03C9/04
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46.Process of washing and protecting photographic silver images, and photographic products thereof 失效
Title translation: 洗涤和保护照相银图像的方法及其照相产品公开(公告)号:US2830900A
公开(公告)日:1958-04-15
申请号:US61382456
申请日:1956-10-04
Applicant: POLAROID CORP
Inventor: LAND EDWIN H , BLOUT ELKAN R , HAAS HOWARD C
IPC: G03C11/08
CPC classification number: G03C11/08 , Y10S430/162
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公开(公告)号:US2431912A
公开(公告)日:1947-12-02
申请号:US69582546
申请日:1946-09-09
Applicant: POLAROID CORP
Inventor: BLOUT ELKAN R , CORLEY RICHARD S
IPC: C07C311/15
CPC classification number: C07C311/15
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公开(公告)号:US2431911A
公开(公告)日:1947-12-02
申请号:US69582446
申请日:1946-09-09
Applicant: POLAROID CORP
Inventor: BLOUT ELKAN R , CORLEY RICHARD S
IPC: C07C43/20
CPC classification number: C07C43/20
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