US5068008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Forming security thread for currency and bank notes
Assignee: Crane and Co Inc
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Filing: 1990-10-29
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Granted: 1991-11-26
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Expires: 2010-10-29
Abstract
Abstract A metallized plastic strip containing security indicia is incorporated within currency paper to deter counterfeiting. The plastic strip is made difficult to detect under reflected light by selective pigmentation to match the currency inks. The presence of the security indicia is verified by detection under transmitted light.
Inventors
- 👤 Timothy T. Crane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:42
CPC Classifications
D; D21; D21H; D21H21/00; D21H21/14; D21H21/40; D21H21/44; B; B42; B42D; B42D25/00; B42D25/30; B42D25/355; G; G07; G07D; G07D7/00; G07D7/06; G07D7/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
68 words
A method of providing a security thread comprising the steps of: providing a plastic strip having a metallized surface; applying solvent-resistant pigmented indicia over said metallized surface; applying a second pigmented coating on a second surface of said plastic strip opposite said metallized surface; and selectively removing a part of said metallized surface except under said first pigmented indicia to provide said pigmented indicia to said plastic strip.
Claim 2
Independent Claim
68 words
A method of providing a security thread comprising the steps of: providing a plastic strip having a metallized surface; applying solvent-resistant pigmented indicia over said metallized surface; applying a second pigmented coating on a second surface of said plastic strip opposite said metallized surface; and selectively removing a part of said metallized surface except under said first pigmented indicia to provide said pigmented indicia to said plastic strip.
Claim 3
Dependent Claim
14 words
The method of claim 1 wherein said second pigmented coating corresponds to said indicia.
Claim 4
Dependent Claim
18 words
The method of claim 1 including the step of enveloping said pigmented indicia in a light transmissive plastic.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-11-25 | 1995-05-27 | 1995-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-25 | 1999-05-27 | 1999-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-25 | 2003-05-27 | 2003-11-26 | $7700.00 | Window Closed / Lapsed |