UST967010I4
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuser roller
Assignee: Walter Anthony Stryjewski
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Filing: 1977-06-27
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Granted: 1978-02-07
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Expires: 1997-06-27
Abstract
Abstract in an electrophotographic copier a fuser roller for fusing images to a copy. The fuser roller includes an inner rigid core of heat transmissive or heat conductive material having an outer surface of generally dome-shaped longitudinal profile and an outer resilient cover having an inner surface generally conforming to the outer surface of said core and having an outer surface of generally hour-glassed shaped longitudinal profile. The fuser roller is provided with a heating element internal to the inner core. In a duplex copier, identical fusing rollers forming a roller pair are provided to fuse images to both sides of a copy.
Inventors
- 👤 Walter Anthony Stryjewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:33
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2014; G03G15/2053
Claims Analysis
Total Claims: 0
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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) | 1981-02-06 | 1981-08-08 | 1982-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-06 | 1985-08-08 | 1986-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-06 | 1989-08-08 | 1990-02-07 | $7700.00 | Window Closed / Lapsed |