Patent US3276773A successfully refreshed from Google Patents.
US3276773A
Expired / Lapsed
US
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Paper guide for corona discharge devices and the like
Assignee: FORMFOTO Manufacturing CO
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Filing: 1965-10-23
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Granted: 1966-10-04
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Tiger Emil
- 👤 Erskine G Corman
- 👤 Kenneth R Reick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:45
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/65; G03G15/6529; G03G15/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A CORONA DISCHARGE DEVICE COMPRISING: OPPOSED DIELECTRIC BODY FRAMES DEFINING A PASSAGEWAY THEREBETWEEN AFFORDING A PATH FOR PAPER TO BE ELECTROSTATICALLY CHARGED; CORONA DISCHARGE WIRES STRUNG ON SAID BODY FRAMES ACROSS SAID PASSAGEWAY; SPACED APART INTEGRAL DIELECTRIC SPACER AND PAPER GUIDE RIBS ON SAID FRAMES INTERPOSED BETWEEN SAID WIRES AND SAID PATH AND DEFINING A RELATIVELY BROAD ENTRY GAP INTO SAID PASSAGEWAY; AND GUIDE FINGER PROJECTIONS ON SAID RIBS AT THE EXIT END OF SAID PASSAGEWAY DEFINING A RELATIVELY NARROW DISCHARGE GAP.
Claim 2
Dependent Claim
82 words
A CORONA DISCHARGE DEVICE COMPRISING: OPPOSED DIELECTRIC BODY FRAMES DEFINING A PASSAGEWAY THEREBETWEEN AFFORDING A PATH FOR PAPER TO BE ELECTROSTATICALLY CHARGED; CORONA DISCHARGE WIRES STRUNG ON SAID BODY FRAMES ACROSS SAID PASSAGEWAY; SPACED APART INTEGRAL DIELECTRIC SPACER AND PAPER GUIDE RIBS ON SAID FRAMES INTERPOSED BETWEEN SAID WIRES AND SAID PATH AND DEFINING A RELATIVELY BROAD ENTRY GAP INTO SAID PASSAGEWAY; AND GUIDE FINGER PROJECTIONS ON SAID RIBS AT THE EXIT END OF SAID PASSAGEWAY DEFINING A RELATIVELY NARROW DISCHARGE GAP.
References Cited (Backward Citations)
US2220264A
Cited
US2486985A
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US2922883A
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US2965481A
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US3088386A
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US3075078A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |