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Patent US3301439A successfully refreshed from Google Patents.
US3301439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation disintegrating capsule
Assignee: Keuffel and Esser Co
•
Filing: 1965-03-05
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Granted: 1967-01-31
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Expires: 1985-03-05
Abstract
No abstract record available.
Inventors
- 👤 Kosar Jaromir
- 👤 Jr George M Atkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:11
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/02; B01J13/025; G; G03; G03C; G03C1/00; G03C1/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
A CAPSULE COMPRISING: A CORE MATERIAL; A RADIATION-TRANSPARENT SHELL COMPLETELY ENCLOSING THE CORE MATERIAL; AND A RADIATION-SENSITIVE SHELL-DISINTEGRATING AGENT IN THE CORE MATERIAL.
Claim 2
Dependent Claim
23 words
A CAPSULE COMPRISING: A CORE MATERIAL; A RADIATION-TRANSPARENT SHELL COMPLETELY ENCLOSING THE CORE MATERIAL; AND A RADIATION-SENSITIVE SHELL-DISINTEGRATING AGENT IN THE CORE MATERIAL.
References Cited (Backward Citations)
US2939009A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |