US3081677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for preparing a copy by means of latent electrostatic images
Assignee: Lumoprint Zindler KG and Co GmbH
•
Filing: 1958-11-20
•
Granted: 1963-03-19
•
Expires: 1978-11-20
Abstract
No abstract record available.
Inventors
- 👤 Limberger Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:43
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/06; G03G15/08; G03G15/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
201 words
AN APPARATUS FOR DUPLICATING A MASTER COPY, CARRIED ON A FIRST FLEXIBLE SHEET, ON A SECOND FLEXIBLE SHEET PROVIDED WITH A PHOTOCONDUCTIVE LAYER, COMPRISING STATIONARY SHEETSUPPORTING MEANS ESTABLISHING A TRANSPORT PATH FOR SAID SHEETS; AN ILLUMINATING DEVICE FOR FORMING A LATENT IMAGE OF SAID MASTER COPY IN SAID LAYER AND A DEVELOPING DEVICE FOR RENDERING SAID IMAGE VISIBLE SUCCESSIVELY POSITIONED ALONG SAID TRANSPORT PATH; A HOUSING SURROUNDING BOTH SAID DEVICES, SAID HOUSING HAVING A LOWER PORTION BELOW SAID PATH AND AN UPPER PORTION ABOVE SAID PATH, SAID UPPER PORTION FORMING A FIRST ENCLOSURE IN THE REGION OF SAID ILLUMINATING DEVICE AND A SECOND ENCLOSURE IN THE REGION OF SAID DEVELOPING DEVICE, SAID ENCLOSURES BEING SPACED APART BY AN EXPOSED PORTION OF SAID PATH OF SUFFICIENT LENGTH TO ENABLE THE GRIPPING OF A SHEET FROM ABOVE, SAID FIRST ENCLOSURE BEING PROVIDED WITH A SLOTTED PORTION FORMING AN INLET ADJACENT ONE EXTREMITY OF SAID PATH FOR THE ADMISSION OF BOTH SAID SHEETS INTO SAID HOUSING, SAID FIRST ENCLOSURE FURTHER HAVING A REAR WALL SPACED ABOVE SAID SUPPORTING MEANS SUFFICIENTLY TO FORM A FIRST CLEARANCE FOR THE EMERGENCE OF BOTH SAID SHEETS ONTO SAID EXPOSED PORTION WHEREBY SAID FIRST SHEET, ON BEING PROPERLY POSITIONED
Claim 2
Independent Claim
201 words
AN APPARATUS FOR DUPLICATING A MASTER COPY, CARRIED ON A FIRST FLEXIBLE SHEET, ON A SECOND FLEXIBLE SHEET PROVIDED WITH A PHOTOCONDUCTIVE LAYER, COMPRISING STATIONARY SHEETSUPPORTING MEANS ESTABLISHING A TRANSPORT PATH FOR SAID SHEETS; AN ILLUMINATING DEVICE FOR FORMING A LATENT IMAGE OF SAID MASTER COPY IN SAID LAYER AND A DEVELOPING DEVICE FOR RENDERING SAID IMAGE VISIBLE SUCCESSIVELY POSITIONED ALONG SAID TRANSPORT PATH; A HOUSING SURROUNDING BOTH SAID DEVICES, SAID HOUSING HAVING A LOWER PORTION BELOW SAID PATH AND AN UPPER PORTION ABOVE SAID PATH, SAID UPPER PORTION FORMING A FIRST ENCLOSURE IN THE REGION OF SAID ILLUMINATING DEVICE AND A SECOND ENCLOSURE IN THE REGION OF SAID DEVELOPING DEVICE, SAID ENCLOSURES BEING SPACED APART BY AN EXPOSED PORTION OF SAID PATH OF SUFFICIENT LENGTH TO ENABLE THE GRIPPING OF A SHEET FROM ABOVE, SAID FIRST ENCLOSURE BEING PROVIDED WITH A SLOTTED PORTION FORMING AN INLET ADJACENT ONE EXTREMITY OF SAID PATH FOR THE ADMISSION OF BOTH SAID SHEETS INTO SAID HOUSING, SAID FIRST ENCLOSURE FURTHER HAVING A REAR WALL SPACED ABOVE SAID SUPPORTING MEANS SUFFICIENTLY TO FORM A FIRST CLEARANCE FOR THE EMERGENCE OF BOTH SAID SHEETS ONTO SAID EXPOSED PORTION WHEREBY SAID FIRST SHEET, ON BEING PROPERLY POSITIONED
References Cited (Backward Citations)
US2735346A
Cited
US2357809A
Cited
US2551582A
Cited
US2589748A
Cited
US2841461A
Cited
US2811088A
Cited
US2854947A
Cited
US2887942A
Cited
US2878742A
Cited
US2826168A
Cited
US2918858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |