Patent US2344295A successfully refreshed from Google Patents.
Patent US3876304A successfully refreshed from Google Patents.
US3876304A
Expired / Lapsed
US
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Phase reticle design
Assignee: Ardac Inc
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Filing: 1973-09-06
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Granted: 1975-04-08
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Expires: 1993-09-06
Abstract
Abstract Disclosed is a reticle assembly readily adaptable for use in radiation sensitive paper security validation apparatus. A transparent lens containing thereon a plurality of evenly spaced parallel reticle lines comprises the assembly. The reticle lines are of such a nature that when the reticle assembly and the paper security to be validated are placed in close operative positional relationship the reticle lines diagonally transverse the lines of the cross-hatched grid pattern contained on the paper security being validated.
Inventors
- 👤 Frank A Novak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:17
CPC Classifications
G; G07; G07D; G07D7/00; G07D7/06; G07D7/12
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
115 words
A reticle assembly to be placed in close positional relationship with a cross-hatched pattern created by the intersection of two sets of lines on a material to be authenticated such that relative positional changes between the reticle and the cross-hatched pattern result in fluctuations in the amount of light passing therethrough, comprising: a substantially transparent window; and a plurality of apertures positioned upon the window in spaced relationship according to the spacing of diagonals through the intersection of the two sets of lines forming the cross-hatched pattern such that when the reticle is operationally positioned with respect to the crosshatched pattern the apertures of the reticle pass transversely to the two sets of lines thereof.
Claim 2
Dependent Claim
115 words
A reticle assembly to be placed in close positional relationship with a cross-hatched pattern created by the intersection of two sets of lines on a material to be authenticated such that relative positional changes between the reticle and the cross-hatched pattern result in fluctuations in the amount of light passing therethrough, comprising: a substantially transparent window; and a plurality of apertures positioned upon the window in spaced relationship according to the spacing of diagonals through the intersection of the two sets of lines forming the cross-hatched pattern such that when the reticle is operationally positioned with respect to the crosshatched pattern the apertures of the reticle pass transversely to the two sets of lines thereof.
Claim 3
Dependent Claim
24 words
The reticle assembly as recited in claim 1 wherein the plurality of apertures positioned upon the window are parallel with respect to each other.
Claim 4
Dependent Claim
28 words
The reticle assemble as recited in claim 1 wherein the plurality of apertures positioned upon the lens are equally spaced upon the lens with respect to each other.
Claim 5
Dependent Claim
46 words
The reticle assembly as recited in claim 1 wherein the plurality of apertures positioned upon the window are, when the reticle is in operative positional relationship with the cross-hatched pattern, diagonally transverse to the intersection points of the two sets of lines of the cross-hatched pattern.
Claim 6
Dependent Claim
48 words
The reticle assembly as recited in claim 4 wherein the plurality of apertures positioned upon the window are equally spaced with relation to each other such that each intersection point of the cross-hatched pattern directly opposite the reticle is transversed by one of the lines on the window.
Claim 7
Dependent Claim
69 words
A reticle assembly to be placed in close positional relationship with a multi-lined grid pattern to determine the validity of the pattern, comprising a transparent window and a plurality of reticle elements upon the window of such a nature that when the reticle assembly is operatively within a close positional relationship with the grid pattern the reticle elements are obliquely angled with respect to the lines of the pattern.
Claim 8
Dependent Claim
69 words
A reticle assembly to be placed in close positional relationship with a multi-lined grid pattern to determine the validity of the pattern, comprising a transparent window and a plurality of reticle elements upon the window of such a nature that when the reticle assembly is operatively within a close positional relationship with the grid pattern the reticle elements are obliquely angled with respect to the lines of the pattern.
Claim 9
Dependent Claim
23 words
The reticle assembly as recited in claim 6 wherein the portion of the window not containing the plurality of reticle elements is masked.
Claim 10
Dependent Claim
44 words
The reticle assembly as recited in claim 6 wherein the reticle elements are so angled that when the reticle assembly is operatively positioned with respect to the grid pattern the reticle elements diagonally transverse the points of intersection of the lines of the pattern.
Claim 11
Dependent Claim
20 words
The reticle assembly as recited in claim 6 wherein the reticle elements comprise a plurality of evenly spaced parallel apertures.
References Cited (Backward Citations)
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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) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |