Patent US3093068A successfully refreshed from Google Patents.
US3093068A
Expired / Lapsed
US
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Method and apparatus for pattern reproduction
Assignee: Xerox Corp
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Filing: 1955-01-03
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Granted: 1963-06-11
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Expires: 1975-01-03
Abstract
No abstract record available.
Inventors
- 👤 Robert W Gundlach
- 👤 George R Mott
- 👤 Edward R Sabel
- 👤 Howard W Albrecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:51
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/14; G03G15/16; G03G15/169; G03G13/00; G03G13/26; G03G13/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
THE METHOD OF FORMING A PREDETERMINED DYE PATTERN ON THE MASTER SHEET OF A SPIRIT DUPLICATING SET COMPRISING THE STEPS OF FORMING A TACKIFIABLE POWDER PARTICLE IMAGE OF SUCH PREDETERMINED PATTERN ON THE DYE LAYER OF THE CARBON SHEET OF A SPIRIT DUPLICATING SET, SUPERPOSING THE MASTER SHEET OF SUCH SET ON THE DYE LAYER OF SAID CARBON SHEET, PASSING THE ASSEMBLED SET THROUGH A TACKIFYING CHAMBER WHEREBY SUCCESSIVE PORTIONS OF SAID POWDER PARTICLE IMAGE ARE PROGRESSIVELY TACKIFIED TO A DEGREE TO ADHERE TO THE MATERIAL OF BOTH SAID SHEETS, PROGRESSIVELY PRESSING SUCCESSIVE PORTIONS OF THE MASTER AND CARBON SHEETS INTO INTIMATE CONTACT AT A PREDETERMINED PRESSURE IN TIMED RELATION TO THE TACKIFICATION OF CORRESPONDING PORTIONS OF THE INTERVENING POWDER PARTICLE IMAGE, MAINTAINING SAID PRESSURE FOR A TIME PERIOD TO PERMIT SAID TACKIFIED IMAGE TO FORM A BOND BETWEEN THE MATERIALS OF SAID SHEETS, AND SEPARATING SAID SHEETS, WHEREBY AN AREA OF DYE LAYER CORRESPONDING TO THE AREA OF THE PREDETERMINED PATTERN IS SEPARATED FROM THE CARBON SHEET AND IS AFFIXED TO THE MASTER SHEET.
Claim 2
Independent Claim
175 words
THE METHOD OF FORMING A PREDETERMINED DYE PATTERN ON THE MASTER SHEET OF A SPIRIT DUPLICATING SET COMPRISING THE STEPS OF FORMING A TACKIFIABLE POWDER PARTICLE IMAGE OF SUCH PREDETERMINED PATTERN ON THE DYE LAYER OF THE CARBON SHEET OF A SPIRIT DUPLICATING SET, SUPERPOSING THE MASTER SHEET OF SUCH SET ON THE DYE LAYER OF SAID CARBON SHEET, PASSING THE ASSEMBLED SET THROUGH A TACKIFYING CHAMBER WHEREBY SUCCESSIVE PORTIONS OF SAID POWDER PARTICLE IMAGE ARE PROGRESSIVELY TACKIFIED TO A DEGREE TO ADHERE TO THE MATERIAL OF BOTH SAID SHEETS, PROGRESSIVELY PRESSING SUCCESSIVE PORTIONS OF THE MASTER AND CARBON SHEETS INTO INTIMATE CONTACT AT A PREDETERMINED PRESSURE IN TIMED RELATION TO THE TACKIFICATION OF CORRESPONDING PORTIONS OF THE INTERVENING POWDER PARTICLE IMAGE, MAINTAINING SAID PRESSURE FOR A TIME PERIOD TO PERMIT SAID TACKIFIED IMAGE TO FORM A BOND BETWEEN THE MATERIALS OF SAID SHEETS, AND SEPARATING SAID SHEETS, WHEREBY AN AREA OF DYE LAYER CORRESPONDING TO THE AREA OF THE PREDETERMINED PATTERN IS SEPARATED FROM THE CARBON SHEET AND IS AFFIXED TO THE MASTER SHEET.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |