US4965165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Donor media shelf life stabilization by control of exposure to contacting oxygen and moisture
Assignee: Mead Corp
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Filing: 1989-05-30
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Granted: 1990-10-23
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Expires: 2009-05-30
Abstract
Abstract A method for storing photosensitive donor media comprising the step of: placing said donor media in an air and humidity occlusive vessel; establishing an internal atmosphere in said vessel, said internal atmosphere containing about 1 to 5% oxygen and about 40 to 60% humidity; and sealing said donor media in said vessel.
Inventors
- 👤 Edward J. Saccocio
- 👤 Uday Varde
- 👤 David A. Hutchings
- 👤 Russell K. Messer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:55
CPC Classifications
G; G03; G03C; G03C3/00; G03C11/00; G03F; G03F7/00; G03F7/002
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
64 words
A method for storing photosensitive donor media including a support having a layer of photosensitive microcapsules on the surface comprising the steps of: placing said donor media in an air and humidity occlusive vessel; establishing an internal atmosphere in said vessel, said internal atmosphere containing about 1 to 5% oxygen and about 40 to 60% humidity; and sealing said donor media in said vessel.
Claim 2
Independent Claim
64 words
A method for storing photosensitive donor media including a support having a layer of photosensitive microcapsules on the surface comprising the steps of: placing said donor media in an air and humidity occlusive vessel; establishing an internal atmosphere in said vessel, said internal atmosphere containing about 1 to 5% oxygen and about 40 to 60% humidity; and sealing said donor media in said vessel.
Claim 3
Dependent Claim
17 words
The method of claim 1, wherein said vessel is a heat sealed, air and water occlusive envelope.
Claim 4
Dependent Claim
14 words
The method of claim 1, wherein said ambient atmosphere is 1 to 5% oxygen.
Claim 5
Dependent Claim
13 words
The method of claim 1, wherein said ambient humidity is 40 to 60%.
Claim 6
Dependent Claim
54 words
The method of claim 1, wherein said step of establishing said internal atmosphere includes the steps of: (a) placing said donor media into said vessel under a vacuum; and (b) releasing said vacuum before sealing of said vessel such that said vessel backfills with a pre-determined atmosphere containing oxygen and humidity within said ranges
Claim 7
Dependent Claim
49 words
The method of claim 1, wherein said step of establishing said internal atmosphere includes the steps of: placing said donor media into said vessel under a pre-determined ambient atmosphere containing oxygen and humidity within said ranges; and sealing said vessel to permanently maintain said ambient atmosphere within said vessel.
Claim 8
Dependent Claim
27 words
The method of claim 1, wherein said step of establishing said internal atmosphere includes the step of adding an oxygen scavenger and/or a dessicant to said vessel.
Claim 9
Dependent Claim
51 words
A photosensitive media having improved shelf-life comprising: (a) a photosensitive donor media including a support having a layer of photosensitive microcapsules on the surface; and (b) an air and water occlusive vessel containing an internal atmosphere of 5% oxygen and 50% humidity; (c) wherein said media is sealed in said vessel.
Claim 10
Dependent Claim
51 words
A photosensitive media having improved shelf-life comprising: (a) a photosensitive donor media including a support having a layer of photosensitive microcapsules on the surface; and (b) an air and water occlusive vessel containing an internal atmosphere of 5% oxygen and 50% humidity; (c) wherein said media is sealed in said vessel.
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) | 1993-10-22 | 1994-04-23 | 1994-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-22 | 1998-04-23 | 1998-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-22 | 2002-04-23 | 2002-10-23 | $7700.00 | Window Closed / Lapsed |