Patent US3285168A successfully refreshed from Google Patents.
US3285168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powder image transfer system
Assignee: CROCKER CITIZENS NAT BANK
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Filing: 1963-05-07
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Granted: 1966-11-15
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Expires: 1983-05-07
Abstract
No abstract record available.
Inventors
- 👤 Clyde O Childress
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:46
CPC Classifications
B; B41; B41M; B41M1/00; B41M1/12; B41M1/125; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
IN AN ELECTROSTATIC POWDER IMAGE TRANSFER SYSTEM WHEREIN AN ELECTRIC FIELD IS ESTABLISHED BETWEEN TWO SPACED APART MEMBERS, ONE OF WHICH IS AN IMAGE FORMING MEMBER FOR ELECTROSCOPIC POWDER PARTICLES WHICH ARE TRANSFERRED THEREFROM IN THE DESIRED IMAGE PATTERN TOWARD SAID OTHER OF SAID TWO MEMBERS, THE IMPROVEMENT COMPRISING A CONTINUOUSLY MOVABLE CONDUCTIVE IMAGE FORMING MEMBER HAVING A PLURALITY OF APERTURES WHICH ARE OPEN TO ONLY ONE SURFACE THERETO, SAID PLURALITY OF APERTURES BEING ARRANGED TO PROVIDE THE DESIRED IMAGE, MEANS FOR LOADING SAID APERTURES WITH ELECTROSCOPIC POWDER PARTICLES AT A FIRST POSITION, AN IMAGE RECEIVING MEMBER LOCATED AT A SECOND POSITION MEANS FOR MOVING SAID CONDUCTIVE IMAGE FORMING MEMBER WITH ITS APERTURES LOADED WITH SAID ELECTROSCOPIC POWDER PARTICLES FROM SAID FIRST POSITION TO ANOTHER POSITION WHICH IS OPPOSITE AND SPACED APART FROM SAID IMAGE RECEIVING MEMBER AND THEREAFTER BACK TO SAID FIRST POSITION, MEANS FOR MOVING SAID CONDUCTIVE IMAGE FORMING MEMBER FOR ESTABLISHING AN ELECTRIC FIELD BETWEEN SAID IMAGE FORMING AND IMAGE RECEIVING MEMBER TO TRANSFER THE ELECTROSCOPIC POWDER PARTICLES TO SAID IMAGE RECEIVING MEMBER WHILE SAID IMAGE FORMING MEMBER IS AT SAID ANOTHER POSITION.
Claim 2
Dependent Claim
186 words
IN AN ELECTROSTATIC POWDER IMAGE TRANSFER SYSTEM WHEREIN AN ELECTRIC FIELD IS ESTABLISHED BETWEEN TWO SPACED APART MEMBERS, ONE OF WHICH IS AN IMAGE FORMING MEMBER FOR ELECTROSCOPIC POWDER PARTICLES WHICH ARE TRANSFERRED THEREFROM IN THE DESIRED IMAGE PATTERN TOWARD SAID OTHER OF SAID TWO MEMBERS, THE IMPROVEMENT COMPRISING A CONTINUOUSLY MOVABLE CONDUCTIVE IMAGE FORMING MEMBER HAVING A PLURALITY OF APERTURES WHICH ARE OPEN TO ONLY ONE SURFACE THERETO, SAID PLURALITY OF APERTURES BEING ARRANGED TO PROVIDE THE DESIRED IMAGE, MEANS FOR LOADING SAID APERTURES WITH ELECTROSCOPIC POWDER PARTICLES AT A FIRST POSITION, AN IMAGE RECEIVING MEMBER LOCATED AT A SECOND POSITION MEANS FOR MOVING SAID CONDUCTIVE IMAGE FORMING MEMBER WITH ITS APERTURES LOADED WITH SAID ELECTROSCOPIC POWDER PARTICLES FROM SAID FIRST POSITION TO ANOTHER POSITION WHICH IS OPPOSITE AND SPACED APART FROM SAID IMAGE RECEIVING MEMBER AND THEREAFTER BACK TO SAID FIRST POSITION, MEANS FOR MOVING SAID CONDUCTIVE IMAGE FORMING MEMBER FOR ESTABLISHING AN ELECTRIC FIELD BETWEEN SAID IMAGE FORMING AND IMAGE RECEIVING MEMBER TO TRANSFER THE ELECTROSCOPIC POWDER PARTICLES TO SAID IMAGE RECEIVING MEMBER WHILE SAID IMAGE FORMING MEMBER IS AT SAID ANOTHER POSITION.
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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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |