US2931752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer medium and method of making
Assignee: Columbia Ribbon and Carbon Manufacturing Co Inc
•
Filing: 1953-09-16
•
Granted: 1960-04-05
•
Expires: 1973-09-16
Abstract
No abstract record available.
Inventors
- 👤 Donglas A Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:17
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
THE METHOD OF MAKING CARBONM PAPER WHICH CONSISTS ESSENTIALLY IN THE STEPS OF CONTINUOUSLY PLACING PAPER PULP IN WATER SUSPENSION, SPREADING THE SUSPENSION TO FORM A CONTINUOUS BLANKET ON A MOVING FORAMINOUS SUPPORT, CONTINUOUSLY CONSOLIDATING THE BLANKET AND WITH DRAWING THE WATER THEREFROM AS IT MOVES ON SAID SUPPORT TO FORM A CONTINUOUS PAPER WEB, AT LEAST PARTIALLY DRYING THE WEB AND COMPACTING THE SAME AT A COMPACTING STATION AS IT LEAVES SAID SUPPORT, AND CONTINUOUSLY COATING THED SURFACE OF THE WEB DIRECTLY UPON LEAVING SAID COMPACTING STATION WITH A WATER DISPERSED COMPOSITION WHOSE DRIED RESIDURE FORMS AN ADHERENT BUT PRESSURE-TRANSFERABLE MARKING FLIM ON THE SURFACE OF THE WEB.
Claim 2
Independent Claim
109 words
THE METHOD OF MAKING CARBONM PAPER WHICH CONSISTS ESSENTIALLY IN THE STEPS OF CONTINUOUSLY PLACING PAPER PULP IN WATER SUSPENSION, SPREADING THE SUSPENSION TO FORM A CONTINUOUS BLANKET ON A MOVING FORAMINOUS SUPPORT, CONTINUOUSLY CONSOLIDATING THE BLANKET AND WITH DRAWING THE WATER THEREFROM AS IT MOVES ON SAID SUPPORT TO FORM A CONTINUOUS PAPER WEB, AT LEAST PARTIALLY DRYING THE WEB AND COMPACTING THE SAME AT A COMPACTING STATION AS IT LEAVES SAID SUPPORT, AND CONTINUOUSLY COATING THED SURFACE OF THE WEB DIRECTLY UPON LEAVING SAID COMPACTING STATION WITH A WATER DISPERSED COMPOSITION WHOSE DRIED RESIDURE FORMS AN ADHERENT BUT PRESSURE-TRANSFERABLE MARKING FLIM ON THE SURFACE OF THE WEB.
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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) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |