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US3473027A
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Process for recording and retrieving information employing photoluminescent inks which luminesce under ultraviolet illumination
Assignee: Wyeth Holdings LLC
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Filing: 1966-10-14
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Granted: 1969-10-14
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Expires: 1986-10-14
Abstract
No abstract record available.
Inventors
- 👤 Mark Phillips Freeman
- 👤 Frederick Halverson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:25
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/002; G11B7/003; B; B07; B07C; B07C3/00; B07C3/10; B07C3/14; B07C3/18; B41; B41J; B41J31/00; B41J31/05; C; C07; C07F; C07F5/00; C07F5/003; C09; C09B; C09B57/00; C09B57/10; C09D; C09D11/00; C09D11/50; C09D5/00; C09D5/22; C09K; C09K11/00; C09K11/08; C09K11/74; C09K11/77; C09K11/7766; C09K11/7767; C09K11/7769; C09K11/7776; G01; G01N; G01N21/00; G01N21/62; G01N21/63; G01N21/64; G06; G06K; G06K1/00; G06K1/12; G06K1/121; G06K1/123; G06K19/00; G06K19/02; G06K19/06; G06K19/06009; G06K19/08; G06K7/00; G06K7/10; G06K7/12; B42; B42D; B42D25/00; B42D25/30; B42D25/36; B42D25/378; B42D25/387; G06K2019/06215; G06K2019/06225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2957079A
Cited
US3059112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |