Patent US4924094A successfully refreshed from Google Patents.
US3215055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic copying machine
Assignee: AB Dick Co
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Filing: 1963-06-28
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Granted: 1965-11-02
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Expires: 1983-06-28
Abstract
No abstract record available.
Inventors
- 👤 Sherell E Campbell
- 👤 Donald E Raterman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:37
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/10; G03B27/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
AN APPARATUS FOR MAKING COPIES OF A FLEXIBLE ORIGINAL ON COPY SHEETS COMPRISING A ROTATING AND LIGHT TRANSMITTING DRUM, A LIGHT SOURCE WITHIN THE DRUM, SAID ORIGINAL BEING WRAPPED AT LEAST PARTIALLY AROUND THE DRUM TO ROTATE WITH THE DRUM, COPY SHEET FEEDING MEANS FOR FEEDING COPY SHEETS TO MOVE WITH THE DRUM AND ORIGINAL FOR EXPOSURE BY THE LIGHT SOURCE, SEPARATING MEANS FOR REMOVING THE EXPOSED COPY SHEETS, AND CONTROL MEANS FOR DETECTING AND THE ACTUAL PRESENCE OF THE ORIGINAL ON THE DRUM AT A POINT IN THE PATH OF ROTATION OF THE DRUM POSITIONED BEYOND THE SEPARATING MEANS IN THE DIRECTION OF ROTATION OF THE DRUM AND FOR CONTROLLING THE OPERATION OF THE COPY SHEET FEEDING MEANS.
Claim 2
Independent Claim
119 words
AN APPARATUS FOR MAKING COPIES OF A FLEXIBLE ORIGINAL ON COPY SHEETS COMPRISING A ROTATING AND LIGHT TRANSMITTING DRUM, A LIGHT SOURCE WITHIN THE DRUM, SAID ORIGINAL BEING WRAPPED AT LEAST PARTIALLY AROUND THE DRUM TO ROTATE WITH THE DRUM, COPY SHEET FEEDING MEANS FOR FEEDING COPY SHEETS TO MOVE WITH THE DRUM AND ORIGINAL FOR EXPOSURE BY THE LIGHT SOURCE, SEPARATING MEANS FOR REMOVING THE EXPOSED COPY SHEETS, AND CONTROL MEANS FOR DETECTING AND THE ACTUAL PRESENCE OF THE ORIGINAL ON THE DRUM AT A POINT IN THE PATH OF ROTATION OF THE DRUM POSITIONED BEYOND THE SEPARATING MEANS IN THE DIRECTION OF ROTATION OF THE DRUM AND FOR CONTROLLING THE OPERATION OF THE COPY SHEET FEEDING MEANS.
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |