US2913339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preventing the aging of printing-out paper coatings
Assignee: GAF Chemicals Corp
•
Filing: 1956-12-31
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Granted: 1959-11-17
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Expires: 1976-12-31
Abstract
No abstract record available.
Inventors
- 👤 Sottysiak Joseph
- 👤 Proc John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:32
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/775; G03C1/005; G03C1/49
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A PRINT-OUT PAPER IN ROLL FORM COMPRISING A PAPER BASE HAVING A SILVE-HALIDE EMULSION COATING ON THE FRONT FACE THEREOF, THE BACK FACE OF THE PAPER BASE BEING SUBSTANTIALLY FREE OF SAID EMULSION AND AT LEAST ONE OF THE OUTER SURFACES OF THE EMULSION COATING AND SAID PAPER BASE BEING IN CONTACT WITH A LAYER COMPRISING A BORON COMPOUND SELECTED FROM THE CLASS CONSISTING OF SODIUM METABORATE AND BORAX, SAID LAYER SUBSTANTIALLY PREVENTING CONTACT BETWEEN THE BLACK FACE OF THE PAPER BASE AND THE EMULSION COATING ON THE FRONT FACE THEREOF IN SAID ROLL.
Claim 2
Dependent Claim
94 words
A PRINT-OUT PAPER IN ROLL FORM COMPRISING A PAPER BASE HAVING A SILVE-HALIDE EMULSION COATING ON THE FRONT FACE THEREOF, THE BACK FACE OF THE PAPER BASE BEING SUBSTANTIALLY FREE OF SAID EMULSION AND AT LEAST ONE OF THE OUTER SURFACES OF THE EMULSION COATING AND SAID PAPER BASE BEING IN CONTACT WITH A LAYER COMPRISING A BORON COMPOUND SELECTED FROM THE CLASS CONSISTING OF SODIUM METABORATE AND BORAX, SAID LAYER SUBSTANTIALLY PREVENTING CONTACT BETWEEN THE BLACK FACE OF THE PAPER BASE AND THE EMULSION COATING ON THE FRONT FACE THEREOF IN SAID ROLL.
References Cited (Backward Citations)
US2448525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |