US3223526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing processes including size reduction of graphic intelligence
Assignee: 3M Co
•
Filing: 1959-05-28
•
Granted: 1965-12-14
•
Expires: 1979-05-28
Abstract
No abstract record available.
Inventors
- 👤 Emil W Grieshaber
- 👤 Donald J Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:00
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/0005
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
114 words
THE PROCESS OF MAKING A GROSSLY REDUCED SIZE COPY OF A GRAPHIC ORIGNIAL HAVING DIFFERENTLY RADIATIONABSORPTIVE IMAGE AND BACKGROUND AREAS COMPRISING: BRIEFLY EXPOSING SAID ORIGINAL WHILE IN HEAT-CONDUCTIVE SURFACE CONTACT WITH A HEAT SHRINKABLE PLASTIC COPY SHEET TO SAID RADIATION AT HIGH INTENSITY TO INDUCE IN SAID ORIGINAL A HEAT-PATTERN CORRESPONDING TO THE RADIATIONABSORPTIVE IMAGE AREAS AND TO PROVIDE ON SAID COPY SHEET A VISIBLE REPRODUCTION OF THE THUS HEATED IMAGE AREAS; AND THEN UNIFORMLY HEATING SAID COPY SHEET ABOVE THE SECOND ORDER TRANSISTION TEMPERATURE BUT BELOW THE MELTING TEMPERATURE OF SAID PLASTIC WHILE SUPPORTING SAID SHEET SUBSTANTIALLY FREE OF RESTRAINT SO AS TO PERMIT SHRINKAGE OF SAID COPY SHEET TO SAID REDUCED SIZE.
Claim 2
Dependent Claim
114 words
THE PROCESS OF MAKING A GROSSLY REDUCED SIZE COPY OF A GRAPHIC ORIGNIAL HAVING DIFFERENTLY RADIATIONABSORPTIVE IMAGE AND BACKGROUND AREAS COMPRISING: BRIEFLY EXPOSING SAID ORIGINAL WHILE IN HEAT-CONDUCTIVE SURFACE CONTACT WITH A HEAT SHRINKABLE PLASTIC COPY SHEET TO SAID RADIATION AT HIGH INTENSITY TO INDUCE IN SAID ORIGINAL A HEAT-PATTERN CORRESPONDING TO THE RADIATIONABSORPTIVE IMAGE AREAS AND TO PROVIDE ON SAID COPY SHEET A VISIBLE REPRODUCTION OF THE THUS HEATED IMAGE AREAS; AND THEN UNIFORMLY HEATING SAID COPY SHEET ABOVE THE SECOND ORDER TRANSISTION TEMPERATURE BUT BELOW THE MELTING TEMPERATURE OF SAID PLASTIC WHILE SUPPORTING SAID SHEET SUBSTANTIALLY FREE OF RESTRAINT SO AS TO PERMIT SHRINKAGE OF SAID COPY SHEET TO SAID REDUCED SIZE.
Claim 3
Dependent Claim
82 words
THE PROCESS OF MAKING A GROSSLY REDUCED SIZE COPY OF A GRAPHIC ORGINAL HAVING IMAGE AND BACKGROUND AREAS DIFFERENTIALLY TRANSMISSIVE OF ACTINIC LIGHT, COMPRISING: EXPOSING TO LIGHT THROUGH SAID ORIGINAL A COPY-SHEET HAVING A THIN VESICULAR-IMAGE DIAZO COATING ON A HEAT SHRINKABLE PLASTIC FILM; AND THEREAFTER DEVELOPING A REDUCED SIZE VISIBLE REPRODUCTION OF SAID ORIGINAL BY UNIFORMLY HEATING SAID COPY-SHEET ABOVE THE SECOND ORDER TRANSITION TEMPERATURE BUT BELOW THE MELTING TEMPERATURE OF SAID PLASTIC WHILE SUPPORTING SAID COPY-SHEET SUBSTANTIALLY FREE OF RESTRAINT.
Claim 4
Dependent Claim
82 words
THE PROCESS OF MAKING A GROSSLY REDUCED SIZE COPY OF A GRAPHIC ORGINAL HAVING IMAGE AND BACKGROUND AREAS DIFFERENTIALLY TRANSMISSIVE OF ACTINIC LIGHT, COMPRISING: EXPOSING TO LIGHT THROUGH SAID ORIGINAL A COPY-SHEET HAVING A THIN VESICULAR-IMAGE DIAZO COATING ON A HEAT SHRINKABLE PLASTIC FILM; AND THEREAFTER DEVELOPING A REDUCED SIZE VISIBLE REPRODUCTION OF SAID ORIGINAL BY UNIFORMLY HEATING SAID COPY-SHEET ABOVE THE SECOND ORDER TRANSITION TEMPERATURE BUT BELOW THE MELTING TEMPERATURE OF SAID PLASTIC WHILE SUPPORTING SAID COPY-SHEET SUBSTANTIALLY FREE OF RESTRAINT.
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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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |