Photographic silver halide emulsion containing contrast improving dopants
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jan 28, 1997
Issued Date -
N/A
app pub date -
Apr 27, 1995
filing date -
Jan 12, 1993
priority date (Note) -
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Abstract
The present invention provides a photographic emulsion comprising a silver halide grains containing at least two dopants. The dopants comprise an osmium-based transition metal complex containing a nitrosyl or thionitrosyl ligand, and a transition metal complex containing a transition metal selected from Group 8 of the periodic table.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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EASTMAN KODAK COMPANY | 343 STATE STREET PATENT LEGAL STAFF ROCHESTER NY 14650-0208 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Bell, Eric L | Webster, NY | 23 | 254 |
# of filed Patents : 23 Total Citations : 254 | |||
MacIntyre, Gladys L | Clyde, NY | 5 | 20 |
# of filed Patents : 5 Total Citations : 20 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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Jul 26, 2023 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 8TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2552); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 8 |
Jul 31, 2019 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 4 |
Feb 09, 2016 | I | Issuance | |
Jan 20, 2016 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Mar 19, 2015 | P | Published | |
Nov 07, 2014 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LI, SHUCAI;LIU, BIN;NIE, LICHAO;AND OTHERS;REEL/FRAME:034234/0656 Owner name: SHANDONG UNIVERSITY, CHINA Effective Date: Nov 07, 2014 |
Jan 17, 2013 | F | Filing | |
Jan 15, 2013 | PD | Priority Date |

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