US3702731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for recording or viewing skin ridge patterns
Assignee: GROUP 128 Inc
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Filing: 1970-07-21
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Granted: 1972-11-14
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Expires: 1990-07-21
Abstract
Abstract APPARATUS FOR RECORDING OR VIEWING FINGERPRINTS COMPRISING A PRISM, A LIGHT FOR ILLUMINATING THE PRISM, AND MEANS FOCUSED SO AS TO PROVIDE IMMAGES FOR RECORDING OR VIEWING PURPOSES OF THE PRINTS OF FINGERS PLACED INTO OPTICAL CONTACT WITH A SURFACE OF THE PRISM.
Inventors
- 👤 John W Wood Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:25
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/06; G03B15/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-14 | 1976-05-15 | 1976-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-14 | 1980-05-15 | 1980-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-14 | 1984-05-15 | 1984-11-14 | $7700.00 | Window Closed / Lapsed |