US3090755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Xerographic process toner and method of producing same
Assignee: International Business Machines Corp
•
Filing: 1958-12-31
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Granted: 1963-05-21
•
Expires: 1978-12-31
Abstract
No abstract record available.
Inventors
- 👤 Erchak Andrew
- 👤 John C Van Dyk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:03
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/087; G03G9/08702; G03G9/08706; G03G9/0825; G03G9/08704; G03G9/08724; G03G9/08775; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A XEROGRAPHIC TONER CONSISTING ESSENTIALY OF PARTICLES OF AN AVERAGE SIZE OF LESS THAN 25 MICRONS OF SHELLAC PIGMENTED WITH BETWEEN ABOUT 2% AND 20% PIGMENT, SAID PARTICLES COATED WITH A NON-FILMING MATERIAL HAVING A HIGHER MELTING POINT THAN SAID RESIN AND SELECTED FROM THE GROUP CONSISTING OF RUBBER, POLYVINYL ACETATE, POLYSTYRENE, POLYETHYLENE, POLYVINYL CHLORIDE, NYLON, ACRYLIC PLASTICS AND STYRENE BUTADIENE SYNTHETIC RUBBER.
Claim 2
Dependent Claim
63 words
A XEROGRAPHIC TONER CONSISTING ESSENTIALY OF PARTICLES OF AN AVERAGE SIZE OF LESS THAN 25 MICRONS OF SHELLAC PIGMENTED WITH BETWEEN ABOUT 2% AND 20% PIGMENT, SAID PARTICLES COATED WITH A NON-FILMING MATERIAL HAVING A HIGHER MELTING POINT THAN SAID RESIN AND SELECTED FROM THE GROUP CONSISTING OF RUBBER, POLYVINYL ACETATE, POLYSTYRENE, POLYETHYLENE, POLYVINYL CHLORIDE, NYLON, ACRYLIC PLASTICS AND STYRENE BUTADIENE SYNTHETIC RUBBER.
References Cited (Backward Citations)
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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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |