Patent US3028683A successfully refreshed from Google Patents.
US3028683A
Expired / Lapsed
US
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Vapor fixing unit for electrostatic printing
Assignee: Magnefax Corp
•
Filing: 1958-03-24
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Granted: 1962-04-10
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Expires: 1978-03-24
Abstract
No abstract record available.
Inventors
- 👤 Teiser Sidney
- 👤 Walter R Sassaman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:25
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2096
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US303069A
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US366421A
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US557043A
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US950689A
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US1082399A
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US1203646A
Cited
US1954577A
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US2214425A
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US2776907A
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US2684301A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |