Patent US3884866A successfully refreshed from Google Patents.
Patent US2918700A successfully refreshed from Google Patents.
US2918700A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radioactive concentrator and radiation source
Assignee: Individual
•
Filing: 1955-07-14
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Granted: 1959-12-29
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Expires: 1975-07-14
Abstract
No abstract record available.
Inventors
- 👤 Loranus P Hatch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:12
CPC Classifications
G; G21; G21F; G21F9/00; G21F9/04; G21F9/06; G21F9/12; Y; Y10; Y10S; Y10S106/00; Y10S106/90; Y10S106/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A METHOD OF PREPARING A CHEMICALLY RESISTANT RADIATION BED SUITABLE FOR IRRADIATION OF LIQUIDS FLOWING THERETHROUGH WHICH COMPRISES FORMING A PLASTIC MIXTURE CONSISTING ESSENTIALLY OF WATER, MONTMORILLONITE CLAY AND A SYNTHETIC WATER-SOLUBLE POLYELECTORLYTE HAVING A WEIGH AVERAGE MOLECULAR WEIGHT OF AT LEAST 10,000 AND HAVING A STRUCTURE DERIVED BY THE POLYMERIZATION OF AT LEAST ONE MONO-OLEFINIC COMPOUND THROUGH THE ALIPHATIC UNSATURATED GROUP, SAID STRUCTURE BEING SUBSTANTIALLY FREE OF
Claim 2
Independent Claim
68 words
A METHOD OF PREPARING A CHEMICALLY RESISTANT RADIATION BED SUITABLE FOR IRRADIATION OF LIQUIDS FLOWING THERETHROUGH WHICH COMPRISES FORMING A PLASTIC MIXTURE CONSISTING ESSENTIALLY OF WATER, MONTMORILLONITE CLAY AND A SYNTHETIC WATER-SOLUBLE POLYELECTORLYTE HAVING A WEIGH AVERAGE MOLECULAR WEIGHT OF AT LEAST 10,000 AND HAVING A STRUCTURE DERIVED BY THE POLYMERIZATION OF AT LEAST ONE MONO-OLEFINIC COMPOUND THROUGH THE ALIPHATIC UNSATURATED GROUP, SAID STRUCTURE BEING SUBSTANTIALLY FREE OF
References Cited (Backward Citations)
US1239227A
Cited
US1296472A
Cited
US1817329A
Cited
US2025762A
Cited
US2072460A
Cited
US2193570A
Cited
US2373468A
Cited
US2440743A
Cited
US2477386A
Cited
US2637890A
Cited
US2749590A
Cited
US2616847A
Cited
US2759899A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |