Patent US3500047A successfully refreshed from Google Patents.
US3500047A
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System for encoding information for automatic readout producing symbols having both photoluminescent material as coding components and visible material and illuminating with both visible and ultraviolet light
Assignee: Wyeth Holdings LLC
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Filing: 1966-02-09
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Granted: 1970-03-10
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Expires: 1986-02-09
Abstract
No abstract record available.
Inventors
- 👤 John William Berry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:07
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/12; C; C09; C09D; C09D5/00; C09D5/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3105908A
Cited
US2888570A
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US2975966A
Cited
US3196393A
Cited
US3211908A
Cited
US3225307A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-09 | 1973-09-08 | 1974-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-09 | 1977-09-08 | 1978-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-09 | 1981-09-08 | 1982-03-10 | $7700.00 | Window Closed / Lapsed |