US3219794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermographic dry copying machine
Assignee: Viewlex Inc
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Filing: 1964-12-08
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Granted: 1965-11-23
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Expires: 1984-12-08
Abstract
No abstract record available.
Inventors
- 👤 Marvin I Mindell
- 👤 Jr William J Reusch
- 👤 Carl R Embury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:04
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/30; G03B27/306; G03B27/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A DRY COPY MACHINE COMPRISING A HOUSING, A STATIONARY ELONGATED HEAT LAMP, A HOLLOW GLASS ROLLER, MEANS TO ROTATABLY MOUNT SAID GLASS ROLLER IN ENCLOSING RELATION TO SAID LAMP, MEANS TO ADJUST THE POSITION OF SAID LAMP WITH RESPECT TO SAID GLASS ROLLER, A PRESSURE ROLLER MOUNTED IN DRIVEN ENGAGEMENT WITH SAID GLASS ROLLER, MEANS TO FOCUS THE HEAT FROM SAID LAMP ALONG THE LINE OF SAID TANGENCY OF SAID ROLLERS, MEANS TO ROTATE SAID ROLLERS COMPRISING, MOTOR MEANS INCLUDING A CONTROL SWITCH FOR ENERGIZING SAID MOTOR, MEANS TO CONTROL THE SPEED OF SAID MOTOR MEANS, SAID LAST MEANS PROVIDING A NORMAL OPERATING SPEED AND AN IDLE SPEED, MEANS TO GUIDE PAPERS BETWEEN SAID ROLLERS AT NORMAL SPEED, SENSING MEANS LOCATED IN THE PATH OF SAID PAPERS BEFORE THEY PASS BETWEEN SAID ROLLERS, CONNECTED TO A SWITCH WHICH IS CONNECTED TO ENERGIZE SAID LAMP ONLY WHEN
Claim 2
Dependent Claim
146 words
A DRY COPY MACHINE COMPRISING A HOUSING, A STATIONARY ELONGATED HEAT LAMP, A HOLLOW GLASS ROLLER, MEANS TO ROTATABLY MOUNT SAID GLASS ROLLER IN ENCLOSING RELATION TO SAID LAMP, MEANS TO ADJUST THE POSITION OF SAID LAMP WITH RESPECT TO SAID GLASS ROLLER, A PRESSURE ROLLER MOUNTED IN DRIVEN ENGAGEMENT WITH SAID GLASS ROLLER, MEANS TO FOCUS THE HEAT FROM SAID LAMP ALONG THE LINE OF SAID TANGENCY OF SAID ROLLERS, MEANS TO ROTATE SAID ROLLERS COMPRISING, MOTOR MEANS INCLUDING A CONTROL SWITCH FOR ENERGIZING SAID MOTOR, MEANS TO CONTROL THE SPEED OF SAID MOTOR MEANS, SAID LAST MEANS PROVIDING A NORMAL OPERATING SPEED AND AN IDLE SPEED, MEANS TO GUIDE PAPERS BETWEEN SAID ROLLERS AT NORMAL SPEED, SENSING MEANS LOCATED IN THE PATH OF SAID PAPERS BEFORE THEY PASS BETWEEN SAID ROLLERS, CONNECTED TO A SWITCH WHICH IS CONNECTED TO ENERGIZE SAID LAMP ONLY WHEN
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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |