Patent US5154668A successfully refreshed from Google Patents.
US5154668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single paper sheet forming a two-sided copy of information entered on both sides thereof
Assignee: Individual
•
Filing: 1990-03-22
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Granted: 1992-10-13
•
Expires: 2010-03-22
Abstract
Abstract A single sheet of paper is divided into at least original and copy panels by fold line(s). Information entered on the two, front and back surfaces of the original panel are reproduced on the two surfaces of the copy panel by carbonless copy treatments. In one embodiment, the original panel is fully coated or partially coated with carbonless CB treatment, on both surfaces, and the copy panel is fully coated or partially coated with carbonless CF treatment. In a variation of this embodiment, the original panel is not coated, and the copy panel is coated in selected areas with carbonless SC treatment. In a second embodiment, the original panel is not coated, an image-transferring panel is fully coated on both surfaces with carbonless CB treatment, and the copy panel is fully coated with carbonless CF treatment. In a variation of this embodiment, the image-transferring panel is formed of a separate sheet of paper. In a third embodiment, the original panel is coated on both sides with a carbonless CB treatment from a first carbonless system, a first copy panel is coated with a carbonless CF treatment from the first carbonless system and with a carbonless CB treatment from a second carbonless system, and a second copy panel is coated with a carbonless CF treatment from the second carbonless system. In a variation of this embodiment, the original panel is simply an iamge-transferring panel, and a separate panel clear of carbonless coating is employed.
Inventors
- 👤 Keith E. Schubert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:32
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/124
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
184 words
Carbonless copy paper, consisting essentially of: a single sheet of paper having a front surface and a back surface and delineated into three panels, an original panel, a first copy panel and a second copy panel; carbonless coating applied to substantially the entire front and back surfaces of the original panel; carbonless coating applied to substantially the entire front and back surfaces of the first copy panel; and carbonless coating applied to substantially the entire front and back surfaces of the second copy panel; wherein: the first copy panel is disposed between the original and second copy panels; the original panel is coated with a first carbonless system CB coating on both surfaces; the second copy panel is coated with a first carbonless CF coating on both surfaces reactive with the first carbonless system CB coating and with a second carbonless system CB coating on both surfaces that is not reactive with the first carbonless system CF coating; and the first copy panel is coated with a second carbonless CF coating on both surfaces which is reactive with the second carbonless system CB coating.
Claim 2
Dependent Claim
184 words
Carbonless copy paper, consisting essentially of: a single sheet of paper having a front surface and a back surface and delineated into three panels, an original panel, a first copy panel and a second copy panel; carbonless coating applied to substantially the entire front and back surfaces of the original panel; carbonless coating applied to substantially the entire front and back surfaces of the first copy panel; and carbonless coating applied to substantially the entire front and back surfaces of the second copy panel; wherein: the first copy panel is disposed between the original and second copy panels; the original panel is coated with a first carbonless system CB coating on both surfaces; the second copy panel is coated with a first carbonless CF coating on both surfaces reactive with the first carbonless system CB coating and with a second carbonless system CB coating on both surfaces that is not reactive with the first carbonless system CF coating; and the first copy panel is coated with a second carbonless CF coating on both surfaces which is reactive with the second carbonless system CB coating.
Claim 3
Dependent Claim
228 words
Carbonless form, comprising: a single sheet of paper having a front surface, a back surface and divided into at least three panels; an original panel having a front surface formed by the front surface of the sheet and a back surface formed by the back surface of the sheet; a first copy panel having a front surface formed by the front surface of the sheet and a back surface formed by the back surface of the sheet; and a second copy panel having a front surface formed by the front surface of the sheet and a back surface formed by the back surface of the sheet; and wherein: the first copy panel is disposed between the original and second copy panels; the original panel is coated with a first carbonless system CB coating on its front and back surfaces; the second copy panel is coated with a mixture of a first carbonless system CF coating and a second carbonless system CB coating on its front and back surfaces, wherein the first carbonless and is not reactive with the second carbonless system CB coating; and the first copy panel is coated with a second carbonless CF coating which is reactive with the second carbonless system CB coating; whereby information entered on both surfaces of the original panel is reproduced on both surfaces of the second and first copy panels.
Claim 4
Dependent Claim
228 words
Carbonless form, comprising: a single sheet of paper having a front surface, a back surface and divided into at least three panels; an original panel having a front surface formed by the front surface of the sheet and a back surface formed by the back surface of the sheet; a first copy panel having a front surface formed by the front surface of the sheet and a back surface formed by the back surface of the sheet; and a second copy panel having a front surface formed by the front surface of the sheet and a back surface formed by the back surface of the sheet; and wherein: the first copy panel is disposed between the original and second copy panels; the original panel is coated with a first carbonless system CB coating on its front and back surfaces; the second copy panel is coated with a mixture of a first carbonless system CF coating and a second carbonless system CB coating on its front and back surfaces, wherein the first carbonless and is not reactive with the second carbonless system CB coating; and the first copy panel is coated with a second carbonless CF coating which is reactive with the second carbonless system CB coating; whereby information entered on both surfaces of the original panel is reproduced on both surfaces of the second and first copy panels.
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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) | 1995-10-13 | 1996-04-13 | 1996-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-13 | 2000-04-13 | 2000-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-13 | 2004-04-13 | 2004-10-13 | $7700.00 | Window Closed / Lapsed |