US4476382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encoding scheme for articles
Assignee: Intex Inc
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Filing: 1983-04-21
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Granted: 1984-10-09
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Expires: 2003-04-21
Abstract
Abstract A scheme for encoding an article involves marking the article with a first material of at least one element, at least one compound of at least one element or a mixture located at a predetermined position on the article. The article is also marked with a second material of at least one element or a mixture thereof located at a predetermined position on the article. The first and second materials each have the property of emitting x-rays when subjected to a primary source of electromagnetic radiation of appropriate wavelength. The emission wavelength/wavelengths, and intensity/intensities for the first material are a predetermined, coded indication of the location of the second material. The emission wavelength/wavelengths and intensity/intensities of the second material are a predetermined identification or verification code for the article.
Inventors
- 👤 Roy H. White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:12
CPC Classifications
G; G06; G06K; G06K19/00; G06K19/06; G06K19/08; G06K19/10; D; D21; D21H; D21H21/00; D21H21/14; D21H21/40; D21H21/44; D21H21/48
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
140 words
An article which contains a first material of at least one element, at least one compound or a mixture thereof located at a predetermined position on said article, and a second material of at least one element, at least one compound or a mixture thereof located at a predetermined position on said article, said first material and second material each having a predetermined size of area of deposition on said article, and said first material and said second material each having the property of emitting fluorescence X-rays when subjected to an X-ray primary beam, the wavelength or wavelengths and intensity or intensities thereof of said first material being a predetermined coded indication of the location of said second material, and the wavelength or wavelengths and intensity or intensities thereof of said second material being a predetermined identification or verification code.
Claim 2
Dependent Claim
140 words
An article which contains a first material of at least one element, at least one compound or a mixture thereof located at a predetermined position on said article, and a second material of at least one element, at least one compound or a mixture thereof located at a predetermined position on said article, said first material and second material each having a predetermined size of area of deposition on said article, and said first material and said second material each having the property of emitting fluorescence X-rays when subjected to an X-ray primary beam, the wavelength or wavelengths and intensity or intensities thereof of said first material being a predetermined coded indication of the location of said second material, and the wavelength or wavelengths and intensity or intensities thereof of said second material being a predetermined identification or verification code.
Claim 3
Dependent Claim
32 words
The article as claimed in claim 1 wherein said article is in a suitably stable physical and chemical state, such as a completed work of art, to be encoded as herein described.
Claim 4
Dependent Claim
32 words
The article as claimed in claim 1 wherein said article can be exposed to X-rays of an energy sufficient to induce the necessary fluorescence without unacceptable or detrimental effects on the article.
Claim 5
Dependent Claim
26 words
The article as claimed in claim 1 wherein said article can be encoded in a manner herein described without unacceptable or detrimental effects on the article.
Claim 6
Dependent Claim
27 words
The article as claimed in claim 1 wherein the element or compound in the first residue is different than the element or compound in the second residue.
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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) | 1987-10-09 | 1988-04-09 | 1988-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-09 | 1992-04-09 | 1992-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-09 | 1996-04-09 | 1996-10-09 | $7700.00 | Window Closed / Lapsed |