Patent US3282152A successfully refreshed from Google Patents.
US3282152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signalment recording apparatus
Assignee: Individual
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Filing: 1964-04-15
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Granted: 1966-11-01
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Expires: 1984-04-15
Abstract
No abstract record available.
Inventors
- 👤 Jon H Myer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:22
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/24; G03B17/245; G03B2217/00; G03B2217/24; G03B2217/241; G03B2217/242; G03B2217/243
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
OPTICAL APPARATUS FOR SIMULTANEOUSLY FORMING ON A COMMON PLANE AN IMAGE OF THE SKIN RIDGE PATTERNS OF APPOSABLE DIGITS OF A HAND COMPRISING, IN COMBINATION, A PAIR OF PRISMS EACH HAVING AT LEAST TWO PARALLEL SURFACES ONE OF WHICH EXHIBITS TOTAL INTERNAL REFLECTION, THE OTHER BEING SUCH AS TO FORM AN IMAGE BY FRUSTRATION OF THE TOTAL INTERNAL REFLECTION AT THE POINTS OF CONTACT OF SAID DIGITS, SAID PRISMS BEING JUXTAPOSED AT THE TOTALLY INTERNAL REFLECTING ONES OF SAID PARALLEL SURFACES, MEANS FOR ILLUMINATING THE IMAGE FORMING INTERNAL REFLECTING SURFACES OF SAID PRISMS AND MEANS TO DIRECT REFLECTED IMAGES FROM SAID INTERNAL REFLECTING SURFACES IN SUBSTANTIALLY PARALLEL PATHS TO SAID COMMON PLANE.
Claim 2
Dependent Claim
112 words
OPTICAL APPARATUS FOR SIMULTANEOUSLY FORMING ON A COMMON PLANE AN IMAGE OF THE SKIN RIDGE PATTERNS OF APPOSABLE DIGITS OF A HAND COMPRISING, IN COMBINATION, A PAIR OF PRISMS EACH HAVING AT LEAST TWO PARALLEL SURFACES ONE OF WHICH EXHIBITS TOTAL INTERNAL REFLECTION, THE OTHER BEING SUCH AS TO FORM AN IMAGE BY FRUSTRATION OF THE TOTAL INTERNAL REFLECTION AT THE POINTS OF CONTACT OF SAID DIGITS, SAID PRISMS BEING JUXTAPOSED AT THE TOTALLY INTERNAL REFLECTING ONES OF SAID PARALLEL SURFACES, MEANS FOR ILLUMINATING THE IMAGE FORMING INTERNAL REFLECTING SURFACES OF SAID PRISMS AND MEANS TO DIRECT REFLECTED IMAGES FROM SAID INTERNAL REFLECTING SURFACES IN SUBSTANTIALLY PARALLEL PATHS TO SAID COMMON PLANE.
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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |