US3138059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means and method for producing image of papillary ridges
Assignee: Ling Temco Vought Inc
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Filing: 1962-05-21
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Granted: 1964-06-23
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Expires: 1982-05-21
Abstract
No abstract record available.
Inventors
- 👤 White Wyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:25
CPC Classifications
G; G06; G06V; G06V40/00; G06V40/10; G06V40/12; G06V40/13; G06V40/1324; A; A61; A61B; A61B5/00; A61B5/117; A61B5/1171; A61B5/1172
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A DEVICE FOR PRODUCING AN OPTICAL IMAGE OF PAPILLARY RIDGES COMPRISING: A TRANSPARENT BODY HAVING FRONT AND REAR FACES, THE FRONT FACE HAVING A CONTACT AREA ADAPTED FOR BEING CONTACTED BY PIPILLARY RIDGES; AN OPTICAL, ANTI-REFLECTIVE, TRANSPARENT COATING ON THE THE BODY REAR FACE; A LIGHT SOURCE POSITIONED TO TRANSMIT LIGHT THROUGH THE REAR FACE AND COATING ONTO THE FRONT FACE AT AN ANGLE WHEREIN PART OF THE LIGHT IS INTERNALLY REFLECTED BY THE FRONT FACE, IN THE CONTACT AREA, THROUGH THE REAR FACE; A SURFACE; AND A LENS POSITIONED TO RECEIVE THE LIGHT INTERNALLY REFLECTED IN THE CONTACT AREA BY THE FRONT FACE AND TO FOCUS THE LIGHT ON THE SURFACE, WHEREBY LIGHT REFLECTION FROM THE TRANSPARENT BODY REAR FACE TO THE LENS IS LARGELY ELIMINATED BY THE COATING AND AN IMAGE OF PAPILLARY RIDGES, UPON THE SAME BEING PLACED IN CONTACT WITH THE FRONT FACE, APPEARS IN THE LIGHT INTERNALLY REFLECTED BY THE FRONT FACE AND FOCUSED BY THE LENS ON THE SURFACE.
Claim 2
Independent Claim
165 words
A DEVICE FOR PRODUCING AN OPTICAL IMAGE OF PAPILLARY RIDGES COMPRISING: A TRANSPARENT BODY HAVING FRONT AND REAR FACES, THE FRONT FACE HAVING A CONTACT AREA ADAPTED FOR BEING CONTACTED BY PIPILLARY RIDGES; AN OPTICAL, ANTI-REFLECTIVE, TRANSPARENT COATING ON THE THE BODY REAR FACE; A LIGHT SOURCE POSITIONED TO TRANSMIT LIGHT THROUGH THE REAR FACE AND COATING ONTO THE FRONT FACE AT AN ANGLE WHEREIN PART OF THE LIGHT IS INTERNALLY REFLECTED BY THE FRONT FACE, IN THE CONTACT AREA, THROUGH THE REAR FACE; A SURFACE; AND A LENS POSITIONED TO RECEIVE THE LIGHT INTERNALLY REFLECTED IN THE CONTACT AREA BY THE FRONT FACE AND TO FOCUS THE LIGHT ON THE SURFACE, WHEREBY LIGHT REFLECTION FROM THE TRANSPARENT BODY REAR FACE TO THE LENS IS LARGELY ELIMINATED BY THE COATING AND AN IMAGE OF PAPILLARY RIDGES, UPON THE SAME BEING PLACED IN CONTACT WITH THE FRONT FACE, APPEARS IN THE LIGHT INTERNALLY REFLECTED BY THE FRONT FACE AND FOCUSED BY THE LENS ON THE SURFACE.
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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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |