Patent US3810776A successfully refreshed from Google Patents.
US3810776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for providing a heater roll fuser with improved release material
Assignee: International Business Machines Corp
•
Filing: 1972-06-30
•
Granted: 1974-05-14
•
Expires: 1992-06-30
Abstract
Abstract OFFSET OF TONER TO A HEATED FUSING ROLL IS PREVENTED BY COATING THE FUSING ROLL WITH AN ADHESION PREVENTING LAYER OF AN IMMISCIBLE DISPERSION OF A HIGH VISCOSITY, LOW SURFACE TENSION COMPONENT SUCH AS ZINC OR ALUMINUM STEARATE OR BEHENATE AND LOW VISCOSITY, LOW SURFACE TENSION COMPONENT SUCH AS 50 CS. SILICONE OIL.
Inventors
- 👤 B Banks
- 👤 A Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:11
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2017; G03G15/2025
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |