US3089952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for thermographic reproduction
Assignee: 3M Co
•
Filing: 1960-01-21
•
Granted: 1963-05-14
•
Expires: 1980-01-21
Abstract
No abstract record available.
Inventors
- 👤 Thomas G Wartman
- 👤 Edward A O'mara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:38
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; B41M5/40; B41M5/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
METHOD FOR THE THERMOGRAPHIC REPRODUCTION OF A GRAPHIC ORIGINAL, DIFFERENTIALLY ABSORPTIVE OF RADIANT ENERGY, ON A HEAT-SENSITIVE COPY-SHEET, COMPRISING: RELEASABLY ADHERENTLY BONDING TOGETHER SAID COPY-SHEET AND SAID ORIGINAL AS A MULTI-PLY COMPOSITE; IRRADIATING SAID COMPOSITE WITH SAID RADIANT ENERGY FOR A TIME AND AT AN INTENSITY SUFFICIENT TO CAUSE REPRODUCTION OF SAID ORIGINAL ON SAOD COPY-SHEET; AND STRIPPING SAID COPY-SHEET FROM SAID ORIGINAL.
Claim 2
Dependent Claim
63 words
METHOD FOR THE THERMOGRAPHIC REPRODUCTION OF A GRAPHIC ORIGINAL, DIFFERENTIALLY ABSORPTIVE OF RADIANT ENERGY, ON A HEAT-SENSITIVE COPY-SHEET, COMPRISING: RELEASABLY ADHERENTLY BONDING TOGETHER SAID COPY-SHEET AND SAID ORIGINAL AS A MULTI-PLY COMPOSITE; IRRADIATING SAID COMPOSITE WITH SAID RADIANT ENERGY FOR A TIME AND AT AN INTENSITY SUFFICIENT TO CAUSE REPRODUCTION OF SAID ORIGINAL ON SAOD COPY-SHEET; AND STRIPPING SAID COPY-SHEET FROM SAID ORIGINAL.
References Cited (Backward Citations)
US2616961A
Cited
US2503758A
Cited
US2663654A
Cited
US2813043A
Cited
US2891165A
Cited
US2927210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |