US3862501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Documents verifiable as to their authenticity
Assignee: Individual
•
Filing: 1973-06-11
•
Granted: 1975-01-28
•
Expires: 1993-06-11
Abstract
Abstract A document which can be verified as to its authenticity has within at least two adjoining surface areas two similar patterns of surface elements at least some of which are elongated, the pattern of one surface area being displaced in relation to that of the other surface area.
Inventors
- 👤 Anton Wilhelm Jemseby
- 👤 Erik Gustav Elinder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:41
CPC Classifications
G; G07; G07D; G07D7/00; G07D7/20; Y; Y10; Y10S; Y10S283/00; Y10S283/902
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
121 words
A document verifiable as to its authenticity, comprising a first surface area and a second surface area, adjoining said first surface area, a first pattern of separate spaced apart image elements within said first surface area, and a second pattern of separate spaced apart image elements within said second surface area, said first and second patterns being similar and having the form of a moire pattern, the image elements of which correspond to moire elements formed by photographic printing of a plurality of superimposed and collectively printed screens which have transparent screen apertures on a nontransparent background and at least one of which has regularly arranged elongated screen apertures, and said first pattern being displaced in relation to said second pattern.
Claim 2
Dependent Claim
121 words
A document verifiable as to its authenticity, comprising a first surface area and a second surface area, adjoining said first surface area, a first pattern of separate spaced apart image elements within said first surface area, and a second pattern of separate spaced apart image elements within said second surface area, said first and second patterns being similar and having the form of a moire pattern, the image elements of which correspond to moire elements formed by photographic printing of a plurality of superimposed and collectively printed screens which have transparent screen apertures on a nontransparent background and at least one of which has regularly arranged elongated screen apertures, and said first pattern being displaced in relation to said second pattern.
Claim 3
Dependent Claim
20 words
A document according to claim 1, wherein said first pattern is displaced in parallel with respect to said second pattern.
Claim 4
Dependent Claim
18 words
A document according to claim 1, wherein said first pattern is rotated in relation to said second pattern.
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) | 1978-01-27 | 1978-07-29 | 1979-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-27 | 1982-07-29 | 1983-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-27 | 1986-07-29 | 1987-01-28 | $7700.00 | Window Closed / Lapsed |