US3495269A
Expired / Lapsed
US
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Electrographic recording method and apparatus with inert gaseous discharge ionization and acceleration gaps
Assignee: Xerox Corp
•
Filing: 1966-12-19
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Granted: 1970-02-10
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Expires: 1986-12-19
Abstract
No abstract record available.
Inventors
- 👤 Edward C Mutschler
- 👤 David M Terry
- 👤 Walter Werner
- 👤 Melvin N Kahler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:12
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/32; G03G15/321; G03G15/323
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1926406A
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US1969143A
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US2931688A
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US3023070A
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US3130411A
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US3321768A
Cited
US3372400A
Cited
US3358289A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-09 | 1973-08-11 | 1974-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-09 | 1977-08-11 | 1978-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-09 | 1981-08-11 | 1982-02-10 | $7700.00 | Window Closed / Lapsed |