US4551367A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaged photographic product
Assignee: Konica Minolta Inc
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Filing: 1984-05-02
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Granted: 1985-11-05
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Expires: 2004-05-02
Abstract
Abstract A packaged photographic product, comprising a composite having a light-sensitive photographic material interposed between protective materials, which composite is further packaged within a barrier packaging material, said barrier packaging material having at least a metal layer provided internally and at least one layer of a polyolefin or a polyolefin derivative prepared by extrusion lamination, and said product also satisfying at least one of the conditions (a) and (b) shown below: condition (a): the surface potential of said barrier packaging material on the side of said protective material having an absolute value of not higher than 75 V; condition (b): the surface specific resistance of said protective material being not higher than 1×10 11 Ω under the condition of the relative humidity of 60%.
Inventors
- 👤 Toshio Nagatani
- 👤 Norio Chiba
- 👤 Takao Hatanaka
- 👤 Toshio Saito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:16
CPC Classifications
G; G03; G03C; G03C3/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
123 words
A packaged photographic product, comprising a composite having a light-sensitive photographic material interposed between protective materials, which composite is further packaged within a barrier packaging material, said barrier packaging material having at least a metal layer provided internally and at least one layer of a polyolefin or a polyolefin derivative prepared by extrusion lamination, and said product also satisfying at least one of the conditions (a) and (b) shown below: condition (a): the surface potential of said barrier packaging material on the side of said protective material having an absolute value of not higher than 25 V; condition (b): the surface specific resistance of said protective material being not higher than 1×10 11 Ω under the condition of the relative humidity of 60%.
Claim 2
Dependent Claim
123 words
A packaged photographic product, comprising a composite having a light-sensitive photographic material interposed between protective materials, which composite is further packaged within a barrier packaging material, said barrier packaging material having at least a metal layer provided internally and at least one layer of a polyolefin or a polyolefin derivative prepared by extrusion lamination, and said product also satisfying at least one of the conditions (a) and (b) shown below: condition (a): the surface potential of said barrier packaging material on the side of said protective material having an absolute value of not higher than 25 V; condition (b): the surface specific resistance of said protective material being not higher than 1×10 11 Ω under the condition of the relative humidity of 60%.
Claim 3
Dependent Claim
16 words
A packaged photographic product as claimed in claim 1, wherein said product satisfies the condition (a).
Claim 4
Dependent Claim
29 words
A packaged photographic product as claimed in claim 2, wherein an antistatic agent is incorporated in the surface layer of the polyolefin or polyolefin derivative, either internally or externally.
Claim 5
Dependent Claim
26 words
A packaged photographic product as claimed in claim 1, wherein said product satisfies the condition (b) and the protective material is incorporated with an inorganic compound.
Claim 6
Dependent Claim
33 words
A packaged photographic product as claimed in claim 4, wherein the inorganic compound is selected from the salts of lithium, sodium, potassium, magnesium, calcium, lead, iron, copper, zinc, aluminium, tin, strontium and manganese.
Claim 7
Dependent Claim
26 words
A packaged photographic product as claimed in claim 5, wherein the inorganic compound is selected from the salts of sodium, potassium, magnesium, calcium, iron and copper.
Claim 8
Dependent Claim
40 words
A packaged photographic product as claimed in claim 4, 5 or 6, wherein the amount of the inorganic compound to be incorporated in a sheet of protective material is in the range of 0.1 to 20 mg/100 cm 2 .
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-11-04 | 1989-05-06 | 1989-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-04 | 1993-05-06 | 1993-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-04 | 1997-05-06 | 1997-11-05 | $7700.00 | Window Closed / Lapsed |