US3216853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic conductive paper and process of manufacture thereof
Assignee: Kimberly Clark Tissue Co
•
Filing: 1960-09-06
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Granted: 1965-11-09
•
Expires: 1980-09-06
Abstract
No abstract record available.
Inventors
- 👤 Jerome M Gess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:41
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/07; G; G03; G03G; G03G5/00; G03G5/10; G03G5/101; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/266; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
AN ELECTROSTATIC IMAGE RECORDING MEDIUM, CONSISTING OF A HAPHAZARDLY ARRANGED CELLULOSE FIBER CONTAINING WEB, HAVING DISPERSED THEREIN A WATER SOLUBLE QUATERNARY AMMONIUM SALT OF THE FORMULA R1-N(-R2)(-R3)(-R4)-X WHEREIN R1 AND R2 ARE LOWER ALKYL GROUPS, R3 IS A LONG CHAIN ALIPHATIC HYDROCARBON CONTAINING FROM 8 TO 18 CARBON ATOMS, R4 IS A HALOGEN SUBSTITUTED BENZYL, AND X IS AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF CHLORINE AND BROMINE, AND CARRYING ON AT LEAST ONE SURFACE OF SAID WEB A DISCRETE LAYER OF SYNTHETIC RESIN DIELECTRIC MATERIAL, SAID CELLULOSE WEB HAVING A SPECIFIC CONDUCTIVITY OF FROM 10**7 TO 10**9 OHMS AND THE RESIN SURFACED WEB A SPECIFIC CONDUCTIVITY THERETHROUGH OF FROM 10**12 TO 10**14 OHMS.
Claim 2
Dependent Claim
116 words
AN ELECTROSTATIC IMAGE RECORDING MEDIUM, CONSISTING OF A HAPHAZARDLY ARRANGED CELLULOSE FIBER CONTAINING WEB, HAVING DISPERSED THEREIN A WATER SOLUBLE QUATERNARY AMMONIUM SALT OF THE FORMULA R1-N(-R2)(-R3)(-R4)-X WHEREIN R1 AND R2 ARE LOWER ALKYL GROUPS, R3 IS A LONG CHAIN ALIPHATIC HYDROCARBON CONTAINING FROM 8 TO 18 CARBON ATOMS, R4 IS A HALOGEN SUBSTITUTED BENZYL, AND X IS AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF CHLORINE AND BROMINE, AND CARRYING ON AT LEAST ONE SURFACE OF SAID WEB A DISCRETE LAYER OF SYNTHETIC RESIN DIELECTRIC MATERIAL, SAID CELLULOSE WEB HAVING A SPECIFIC CONDUCTIVITY OF FROM 10**7 TO 10**9 OHMS AND THE RESIN SURFACED WEB A SPECIFIC CONDUCTIVITY THERETHROUGH OF FROM 10**12 TO 10**14 OHMS.
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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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |