US3004860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Induction powder transfer
Assignee: Xerox Corp
•
Filing: 1957-04-24
•
Granted: 1961-10-17
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Expires: 1977-04-24
Abstract
No abstract record available.
Inventors
- 👤 Robert W Gundlach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:21
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/14; G03G15/16; G03G15/1625; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
THE METHOD OF TRANSFERING A RELEASABLE INSULATING POWDER IMAGE ON AN INSULATING SURFACE OVERLYING A CONDUCTIVE SUPPORT TO A CONDUCTIVE SURFACE OF A TRANSFER MEMBER, COMPRISING ELETROSTATICALLY CHARGING THE INSULATING SURFACE TOGETHER WITH THE IMAGE THEREON TO A POTENTIAL GREATER THAN ABOUT 200 VOLTS AND LESS THAN THE BREAKDOWN POTENTIAL OF THE INSULATING SURFACE, CONTACTING THE INSULATING SURFACE WITH THE CONDUCTIVE SURFACE, SEPARATING THE CONDUCTIVE SURFACE FROM THE INSULATING SURFACE AND BRINGING THE CONDUCTIVE SURFACE TO SUBSTANTIALLY THE POTENTIAL OF THE CONDUCTIVE SUPPORT FOR A TIME EXTENDING AT LEAST FROM BEFORE UNTIL AFTER SEPARATION OF THE SURFACES.
Claim 2
Independent Claim
97 words
THE METHOD OF TRANSFERING A RELEASABLE INSULATING POWDER IMAGE ON AN INSULATING SURFACE OVERLYING A CONDUCTIVE SUPPORT TO A CONDUCTIVE SURFACE OF A TRANSFER MEMBER, COMPRISING ELETROSTATICALLY CHARGING THE INSULATING SURFACE TOGETHER WITH THE IMAGE THEREON TO A POTENTIAL GREATER THAN ABOUT 200 VOLTS AND LESS THAN THE BREAKDOWN POTENTIAL OF THE INSULATING SURFACE, CONTACTING THE INSULATING SURFACE WITH THE CONDUCTIVE SURFACE, SEPARATING THE CONDUCTIVE SURFACE FROM THE INSULATING SURFACE AND BRINGING THE CONDUCTIVE SURFACE TO SUBSTANTIALLY THE POTENTIAL OF THE CONDUCTIVE SUPPORT FOR A TIME EXTENDING AT LEAST FROM BEFORE UNTIL AFTER SEPARATION OF THE SURFACES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |