US3298831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper laminates for electrostatic printing support members
Assignee: NewPage Wisconsin System Inc
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Filing: 1963-07-02
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Granted: 1967-01-17
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Expires: 1983-07-02
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Lau
- 👤 Rapids Wisconsin
- 👤 Collett Groff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:02
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/10; G03G5/101
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
110 words
A LAMINATE FOR USE AS AN ELECTROSTATIC PRINTING PAPER BASE COMPRISING A PLURALITY OF PLIES OF ADHESIVELY BONDED PAPER WEBS, A FIRST SURFACE OF ONE OF SAID WEBS FORMING AN OUTER DEFINING FACE OF THE LAMINATE AND BEING RELATIVELY NON-POROUS AND DEFINED BY A SMOOTH, DENSIFIED FIBER ZONE, THE OPPOSED SURFACE OF SAID WEB BEING DEFINED BY A RELATIVELY POROUS UNDENSIFIED FIBER ZONE AND BONDED THEREAT BY AN INTERPOSED PLY OF ADHESIVE, TO A SIMILARLY POROUS UNDENSIFIED ADJACENT SURFACE OF A SECOND WEB DEFINED BY A RELATIVELY POROUS UNDENSIFIED FIBER ZONE THEREOF, SAID RELATIVELY NON-POROUS, SMOOTH, DENSIFIED FIBER ZONE BEING RESISTANT TO PENETRATION OF SUBSEQUENTLY APPLIED DIELECTRIC COATING COMPOSITION SOLVENT.
Claim 2
Dependent Claim
110 words
A LAMINATE FOR USE AS AN ELECTROSTATIC PRINTING PAPER BASE COMPRISING A PLURALITY OF PLIES OF ADHESIVELY BONDED PAPER WEBS, A FIRST SURFACE OF ONE OF SAID WEBS FORMING AN OUTER DEFINING FACE OF THE LAMINATE AND BEING RELATIVELY NON-POROUS AND DEFINED BY A SMOOTH, DENSIFIED FIBER ZONE, THE OPPOSED SURFACE OF SAID WEB BEING DEFINED BY A RELATIVELY POROUS UNDENSIFIED FIBER ZONE AND BONDED THEREAT BY AN INTERPOSED PLY OF ADHESIVE, TO A SIMILARLY POROUS UNDENSIFIED ADJACENT SURFACE OF A SECOND WEB DEFINED BY A RELATIVELY POROUS UNDENSIFIED FIBER ZONE THEREOF, SAID RELATIVELY NON-POROUS, SMOOTH, DENSIFIED FIBER ZONE BEING RESISTANT TO PENETRATION OF SUBSEQUENTLY APPLIED DIELECTRIC COATING COMPOSITION SOLVENT.
Claim 3
Dependent Claim
34 words
THE LAMINATE OF CLAIM 1 WHEREIN SAID FIRS SURFACE CARRIES A FIRST COATING OF MINERAL PIGMENT AND ADHESIVE AND A SECOND COATING THEREOVER OF A DIELECTRIC FORMING RESIN HAVING DISPERSED THEREIN PHOTOCONDUCTIVE PARTICLE MATERIAL.
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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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |