Patent US2304817A successfully refreshed from Google Patents.
US3295651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monetary tokens
Assignee: De la Rue International Ltd
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Filing: 1963-03-25
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Granted: 1967-01-03
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Expires: 1983-03-25
Abstract
No abstract record available.
Inventors
- 👤 Klackowski Stefan
- 👤 Goalby Barry Birch
- 👤 Lowe Dennis Charles
- 👤 Salter Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:59
CPC Classifications
G; G07; G07F; G07F1/00; G07F1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A MONETARY TOKEN MADE FROM A MATERIAL WHICH INCLUDES RADIOACTIVE UREA CONTAINING CARBON14, AND HAVING A FIRST SURFACE HAVING A SUBSTANTIALLY UNIFORM DISTRIBUTION OF CARBON14 THEREON, THE EMISSION OF RADIOACTIVITY FROM SAID SURFACE BEING WITHIN PREDETERMINED RANGES OF PENETRATION AND INTENSITY.
Claim 2
Dependent Claim
41 words
A MONETARY TOKEN MADE FROM A MATERIAL WHICH INCLUDES RADIOACTIVE UREA CONTAINING CARBON14, AND HAVING A FIRST SURFACE HAVING A SUBSTANTIALLY UNIFORM DISTRIBUTION OF CARBON14 THEREON, THE EMISSION OF RADIOACTIVITY FROM SAID SURFACE BEING WITHIN PREDETERMINED RANGES OF PENETRATION AND INTENSITY.
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |