US3244546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic image reproduction
Assignee: Xerox Corp
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Filing: 1963-01-04
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Granted: 1966-04-05
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Expires: 1983-01-04
Abstract
No abstract record available.
Inventors
- 👤 John E Cranch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:59
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/12; C23F11/128; C07; C07D; C07D303/00; C07D303/02; C07D303/48; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/24; C08G59/32; G; G03; G03G; G03G15/00; G03G15/22; G03G15/225; G03G15/28; G03G15/30; Y; Y10; Y10S; Y10S101/00; Y10S101/37
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
88 words
A METHOD OF FORMING A REPRODUCTION COMPRISING THE STEPS OF: (A) IMPRESSING AN IMAGE TO BE REPRODUCED TO A DEPTH OF ABOUT AT LEAST 7/10 MILS IN THE SURFACE OF A RELATIVELY CONDUCTIVE PAPER SHEET IMAGE SUPPORT; (B) PLACING THE IMAGE SUPPORT INTO OVERLYING CONTACT WITH A MEMBER HAVING AN INSULATING SURFACE; (C) APPLYING A CHARGE POTENTIAL ONTO THE BACK OF THE IMAGE SUPPORT WHILE IN SAID LAST RECITED RELATION; AND, (D) REMOVING THE IMAGE SUPPORT FROM THE POSITION OF CONTACT WITH THE INSULATING MEMBER WHEREBY A DEVEL-
Claim 2
Independent Claim
88 words
A METHOD OF FORMING A REPRODUCTION COMPRISING THE STEPS OF: (A) IMPRESSING AN IMAGE TO BE REPRODUCED TO A DEPTH OF ABOUT AT LEAST 7/10 MILS IN THE SURFACE OF A RELATIVELY CONDUCTIVE PAPER SHEET IMAGE SUPPORT; (B) PLACING THE IMAGE SUPPORT INTO OVERLYING CONTACT WITH A MEMBER HAVING AN INSULATING SURFACE; (C) APPLYING A CHARGE POTENTIAL ONTO THE BACK OF THE IMAGE SUPPORT WHILE IN SAID LAST RECITED RELATION; AND, (D) REMOVING THE IMAGE SUPPORT FROM THE POSITION OF CONTACT WITH THE INSULATING MEMBER WHEREBY A DEVEL-
Claim 3
Dependent Claim
32 words
THE METHOD ACCORDING TO CLAIM 1 WHICH COMPRISES THE ADDITIONAL STEP OF PRESENTING ELECTROSCOPIC DEVELOPER MATERIAL TO THE REMAINING CHARGES ON SAID INSULATING MATERIAL TO RENDER A VISIBLE REPRODUCTION OF SAID IMAGE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |