Patent US6080532A successfully refreshed from Google Patents.
US6080532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clear duplitized display materials
Assignee: Eastman Kodak Co
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Filing: 1998-09-17
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Granted: 2000-06-27
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Expires: 2018-09-17
Abstract
Abstract The invention relates to a photographic element comprising a transparent polymer sheet, at least one image layer on the topside and one image layer on the bottom side wherein said polymer sheet has a stiffness of between 20 and 100 millinewtons, and said photographic element has a spectral transmission of at least 90% and a reflection density less than 10%.
Inventors
- 👤 Alphonse D. Camp
- 👤 Peter T. Aylward
- 👤 Robert P. Bourdelais
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:02
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C7/00; G03C7/30; G03C7/3029; G03C1/005; G03C1/46; Y; Y10; Y10S; Y10S430/00; Y10S430/134; Y10S430/14
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
89 words
A photographic element comprising a transparent polymer sheet, at least one image layer on the topside and one image layer on the bottom side wherein said polymer sheet has a stiffness of between 20 and 100 millinewtons, and said photographic element has a spectral transmission of at least 90% and a reflection density less than 10% and wherein said at least one image layer comprises at least one imaging layer containing silver halide and a dye forming coupler located on the topside and bottom side of said imaging element.
Claim 2
Dependent Claim
89 words
A photographic element comprising a transparent polymer sheet, at least one image layer on the topside and one image layer on the bottom side wherein said polymer sheet has a stiffness of between 20 and 100 millinewtons, and said photographic element has a spectral transmission of at least 90% and a reflection density less than 10% and wherein said at least one image layer comprises at least one imaging layer containing silver halide and a dye forming coupler located on the topside and bottom side of said imaging element.
Claim 3
Dependent Claim
16 words
The photographic element of claim 1 wherein said reflection density is between 3% and about 8%.
Claim 4
Dependent Claim
15 words
The photographic element of claim 1 wherein said spectral transmission is between 92% and 98%.
Claim 5
Dependent Claim
16 words
The photographic element of claim 1 wherein said transparent polymer sheet is substantially free of pigment.
Claim 6
Dependent Claim
20 words
The photographic element of claim 1 wherein said imaging element comprises at least one layer of biaxially oriented polyolefin sheet.
Claim 7
Dependent Claim
38 words
The photographic element of claim 5 wherein said topside at least one biaxially oriented sheet is on the topside and said topside biaxially oriented polyolefin sheet has an integral layer of polyethylene on the top of said sheet.
Claim 8
Dependent Claim
18 words
The photographic element of claim 5 wherein said biaxially oriented polyolefin sheet is substantially free of white pigments.
Claim 9
Dependent Claim
65 words
The photographic element of claim 1 wherein said transparent polymer sheet has a biaxially oriented polymer sheet adhered to the top surface and said at least one dye forming layer on the opposite side of said transparent polymer sheet from the biaxially oriented polyolefin sheet has substantially less dye forming coupler than the imaging layer on the same side as the biaxially oriented polyolefin sheet.
Claim 10
Dependent Claim
57 words
The photographic element of claim 1 wherein said transparent polymer sheet has a biaxially oriented polymer sheet adhered to the top surface and the at least one dye forming layer on the opposite side comprises about the same amount of dye forming coupler as the imaging layer on the same side as the biaxially oriented polyolefin sheet.
Claim 11
Independent Claim
100 words
A method of imaging comprising providing an photographic element comprising a transparent polymer sheet, at least one layer of biaxially oriented polyolefin sheet, at least one image layer comprising silver halide and a dye forming coupler coated on the top and at least one image layer comprising silver halide and a dye forming coupler coated on the bottom, wherein said polymer sheet has a stiffness of between 20 and 100 millinewtons, and said biaxially oriented polyolefin sheet has a spectral transmission of at least 90% and a reflection density less than 10%, exposing said image layer, and developing an image.
Claim 12
Independent Claim
100 words
A method of imaging comprising providing an photographic element comprising a transparent polymer sheet, at least one layer of biaxially oriented polyolefin sheet, at least one image layer comprising silver halide and a dye forming coupler coated on the top and at least one image layer comprising silver halide and a dye forming coupler coated on the bottom, wherein said polymer sheet has a stiffness of between 20 and 100 millinewtons, and said biaxially oriented polyolefin sheet has a spectral transmission of at least 90% and a reflection density less than 10%, exposing said image layer, and developing an image.
Claim 13
Dependent Claim
18 words
The method of claim 10 wherein said exposing is by means of a collimated beam of visible energy.
Claim 14
Dependent Claim
13 words
The method of claim 11 wherein said collimated beam comprises a laser beam.
Claim 15
Dependent Claim
16 words
The method of claim 10 wherein said developing is carried out in less than 50 seconds.
Claim 16
Dependent Claim
15 words
The method of claim 10 wherein said transparent polymer sheet is substantially free of pigment.
Claim 17
Dependent Claim
24 words
The method of claim 10 wherein said topside biaxially oriented polyolefin sheet has an integral layer of polyethylene on the top of said sheet.
Claim 18
Dependent Claim
18 words
The photographic element of claim 15 wherein said biaxially oriented polyolefin sheet is substantially free of white pigments.
Claim 19
Dependent Claim
68 words
The method of claim 10 wherein in said photographic element said transparent polymer sheet has a biaxially oriented polymer sheet adhered to the top surface and said at least one dye forming layer on the opposite side of said transparent polymer sheet from the biaxially oriented polyolefin sheet has substantially less dye forming coupler than the imaging layer on the same side as the biaxially oriented polyolefin sheet.
Claim 20
Dependent Claim
60 words
The method of claim 10 wherein in said photographic element said transparent polymer sheet has a biaxially oriented polymer sheet adhered to the top surface and the at least one dye forming layer on the opposite side comprises about the same amount of dye forming coupler as the imaging layer on the same side as the biaxially oriented polyolefin sheet.
Claim 21
Dependent Claim
15 words
The method of claim 10 wherein said reflection density is between 3% and about 8%.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-06-27 | 2003-12-27 | 2004-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-06-27 | 2007-12-27 | 2008-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-06-27 | 2011-12-27 | 2012-06-27 | $7700.00 | Window Closed / Lapsed |