Patent US1630380A successfully refreshed from Google Patents.
US3011963A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic electrocopying apparatus
Assignee: 3M Co
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Filing: 1957-09-25
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Granted: 1961-12-05
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Expires: 1977-09-25
Abstract
No abstract record available.
Inventors
- 👤 Edgar G Johnson
- 👤 Byron W Neher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:12
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/06; C; C25; C25D; C25D5/00; C25D5/02; G03G17/00; G03G17/02; Y; Y10; Y10S; Y10S101/00; Y10S101/29; Y10S101/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
197 words
APPARATUS FOR ELECTROLYTICALLY REPRODUCING AN IMAGE WHICH COMPRISES IN COMBINATION AN ENCLOSED CONTAINER HAVING AN ELONGATED OPENING FOR REMOVAL OF A REPRODUCTION SHEET FROM WITHIN SAID CONTAINER AND HAVING AN APERTURE IN ONE END OF SAID CONTAINER, AN ENLARGING LENS ADJACENT TO SAID APERTURE, MEANS FOR DIRECTING A BEAM OF RADIATION THROUGH SAID ENLARGING LENS AND SAID APERTURE WHEREBY SAID RADIATION IS PROJECTED TO THE OTHER END OF SAID CONTAINER TO FORM A PROJECTION AREA, MEANS POSITIONED WITHIN SAID CONTAINER FOR SUPPORTING A ROLL OF PHOTOCONDUCTIVE COPY SHEET, MEANS POSITIONED WITHIN SAID CONTAINER FOR RECEIVING AND POSITIONING A PORTION OF SAID PHOTOCONDUCTIVE COPY SHEET ACROSS THE END OF SAID CONTAINER TO WHICH SAID LIGHT IS PROJECTED AND DIRECTING SAID COPY SHEET THROUGH SAID ELONGATED OPENING, AN ELECTRODE POSITIONED WITHIN SAID ENCLOSED CONTAINER BETWEEN THE PROJECTION AREA OF THE CONTAINER AND SAID ELONGATED OPENING AND ADAPTED TO ELECTROLYTICALLY CONTACT THE EXPOSED PORTION OF SAID PHOTOCONDUCTIVE COPY SHEET, MEANS FOR PASSING THE EXPOSED PORTION OF SAID COPY SHEET ACROSS SAID ELECTRODE AND IN ELECTROLYTIC CONTACT THEREWITH WHEREBY ELECTROLYTIC DEVELOPMENT IS EFFECTED AT SAID ELECTRODE, AND MEANS FOR CONNECTING AN ELECTRICAL POTENTIAL BETWEEN SAID ELECTRODE AND SAID PHOTOCONDUCTIVE COPY SHEET.
Claim 2
Dependent Claim
197 words
APPARATUS FOR ELECTROLYTICALLY REPRODUCING AN IMAGE WHICH COMPRISES IN COMBINATION AN ENCLOSED CONTAINER HAVING AN ELONGATED OPENING FOR REMOVAL OF A REPRODUCTION SHEET FROM WITHIN SAID CONTAINER AND HAVING AN APERTURE IN ONE END OF SAID CONTAINER, AN ENLARGING LENS ADJACENT TO SAID APERTURE, MEANS FOR DIRECTING A BEAM OF RADIATION THROUGH SAID ENLARGING LENS AND SAID APERTURE WHEREBY SAID RADIATION IS PROJECTED TO THE OTHER END OF SAID CONTAINER TO FORM A PROJECTION AREA, MEANS POSITIONED WITHIN SAID CONTAINER FOR SUPPORTING A ROLL OF PHOTOCONDUCTIVE COPY SHEET, MEANS POSITIONED WITHIN SAID CONTAINER FOR RECEIVING AND POSITIONING A PORTION OF SAID PHOTOCONDUCTIVE COPY SHEET ACROSS THE END OF SAID CONTAINER TO WHICH SAID LIGHT IS PROJECTED AND DIRECTING SAID COPY SHEET THROUGH SAID ELONGATED OPENING, AN ELECTRODE POSITIONED WITHIN SAID ENCLOSED CONTAINER BETWEEN THE PROJECTION AREA OF THE CONTAINER AND SAID ELONGATED OPENING AND ADAPTED TO ELECTROLYTICALLY CONTACT THE EXPOSED PORTION OF SAID PHOTOCONDUCTIVE COPY SHEET, MEANS FOR PASSING THE EXPOSED PORTION OF SAID COPY SHEET ACROSS SAID ELECTRODE AND IN ELECTROLYTIC CONTACT THEREWITH WHEREBY ELECTROLYTIC DEVELOPMENT IS EFFECTED AT SAID ELECTRODE, AND MEANS FOR CONNECTING AN ELECTRICAL POTENTIAL BETWEEN SAID ELECTRODE AND SAID PHOTOCONDUCTIVE COPY SHEET.
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) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |