US3078770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Xerographic reproducing apparatus
Assignee: Xerox Corp
•
Filing: 1960-08-01
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Granted: 1963-02-26
•
Expires: 1980-08-01
Abstract
No abstract record available.
Inventors
- 👤 Robert A Hunt
- 👤 Gordon P Taillie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:37
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/22; G03G15/28; G03G15/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A XEROGRAPHIC REPRODUCING APPARATUS INCLUDING A FRAME, A XEROGRAPHIC DRUM JOURNALED IN SAID FRAME, CHARGING MEANS POSITIONED TO PLACE A UNIFORM ELECTROSTATIC CHARGE ON SAID XEROGRAPHIC DRUM, A PROJECTOR MOUNTED ON SAID FRAME, SAID PROJECTOR HAVING AN OPTICAL PROJECTION MEANS AND A COPY CARRIAGE ASSEMBLY FOR SUPPORTING COPY TO BE REPRODUCED, SAID COPY CARRIAGE ASSEMBLY BEING ADAPTED TO TRAVERSE THE OPTICAL PATH OF SAID OPTICAL PROJECTION MEANS WHEREBY ANY IMAGE OF THE COPY IS PROJECTED ONTO SAID XEROGRAPHIC DRUM TO FORM AN ELECTROSTATIC LATENT IMAGE THEREON, DEVELOPING MEANS POSITIONED TO DEVELOP AN ELECTROSTATIC LATENT IMAGE ON SAID DRUM, A SHEET CONVEYOR FOR CONVEYING A SHEET OF TRANSFER MATERIAL TO SAID XEROGRAPHIC DRUM, TRANSFER MEANS POSITIONED TO EFFECT TRANSFER OF A DEVELOPED IMAGE FROM SAID XEROGRAPHIC DRUM ONTO A SHEET OF TRANSFER MATERIAL, DRIVE MEANS CONNECTED TO SAID XEROGRAPHIC DRUM FOR EFFECTING ROTATION THEREOF AND CON-
Claim 2
Dependent Claim
145 words
A XEROGRAPHIC REPRODUCING APPARATUS INCLUDING A FRAME, A XEROGRAPHIC DRUM JOURNALED IN SAID FRAME, CHARGING MEANS POSITIONED TO PLACE A UNIFORM ELECTROSTATIC CHARGE ON SAID XEROGRAPHIC DRUM, A PROJECTOR MOUNTED ON SAID FRAME, SAID PROJECTOR HAVING AN OPTICAL PROJECTION MEANS AND A COPY CARRIAGE ASSEMBLY FOR SUPPORTING COPY TO BE REPRODUCED, SAID COPY CARRIAGE ASSEMBLY BEING ADAPTED TO TRAVERSE THE OPTICAL PATH OF SAID OPTICAL PROJECTION MEANS WHEREBY ANY IMAGE OF THE COPY IS PROJECTED ONTO SAID XEROGRAPHIC DRUM TO FORM AN ELECTROSTATIC LATENT IMAGE THEREON, DEVELOPING MEANS POSITIONED TO DEVELOP AN ELECTROSTATIC LATENT IMAGE ON SAID DRUM, A SHEET CONVEYOR FOR CONVEYING A SHEET OF TRANSFER MATERIAL TO SAID XEROGRAPHIC DRUM, TRANSFER MEANS POSITIONED TO EFFECT TRANSFER OF A DEVELOPED IMAGE FROM SAID XEROGRAPHIC DRUM ONTO A SHEET OF TRANSFER MATERIAL, DRIVE MEANS CONNECTED TO SAID XEROGRAPHIC DRUM FOR EFFECTING ROTATION THEREOF AND CON-
References Cited (Backward Citations)
US2843084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |