US5118526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a simulated watermark
Assignee: Regal Press Inc
•
Filing: 1991-03-11
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Granted: 1992-06-02
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Expires: 2011-03-11
Abstract
Abstract A method of producing a simulated watermark in which intense, focused heat is momentarily applied, in the desired watermark pattern, onto a thin solid matrix of waxy material placed in contact with a sheet of uncoated paper. This results in impression of a durable translucent mark. The wax penetrates the paper without the need wither for chemical action or the application of significant direct pressure, and creates regions of translucence in the paper fibers.
Inventors
- 👤 Philip R. Allen
- 👤 James E. Nangle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:41
CPC Classifications
B; B41; B41M; B41M3/00; B41M3/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
57 words
A method of applying a simulated watermark to a sheet of uncoated paper, comprising the steps of: a. placing a sheet of waxed material in contact with one side of the paper; and b. momentarily applying, in a pattern representative of a desired design, sufficient heat to melt the wax and cause its entry into the paper.
Claim 2
Independent Claim
57 words
A method of applying a simulated watermark to a sheet of uncoated paper, comprising the steps of: a. placing a sheet of waxed material in contact with one side of the paper; and b. momentarily applying, in a pattern representative of a desired design, sufficient heat to melt the wax and cause its entry into the paper.
Claim 3
Dependent Claim
25 words
The method of claim 1 wherein the heat is applied by a solid member with sufficiently small pressure to avoid producing indentations on the paper.
Claim 4
Dependent Claim
23 words
The method of claim 1 wherein the sheet of waxed material contains a heavy coating of wax on at least one side thereof.
Claim 5
Dependent Claim
23 words
The method of claim 1 wherein the heat is applied by a solid member whose temperature ranges from 200° F. to 275° F.
Claim 6
Dependent Claim
19 words
The method of claim 4 wherein the heat is applied for a period of time not exceeding 1/10 second.
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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) | 1995-06-02 | 1995-12-02 | 1996-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-02 | 1999-12-02 | 2000-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-02 | 2003-12-02 | 2004-06-02 | $7700.00 | Window Closed / Lapsed |