US2921891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactor coolant-moderator
Assignee: North American Aviation Corp
•
Filing: 1955-01-13
•
Granted: 1960-01-19
•
Expires: 1975-01-13
Abstract
No abstract record available.
Inventors
- 👤 Eugene L Colichman
- 👤 Denis J Zigrang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:44
CPC Classifications
G; G21; G21C; G21C5/00; G21C5/12; G21C5/123; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A METHOD OF INHIBITING RADIOLITIC DAMAGE TO AN AROMATIC HYDROCARBON UNDER NUCLEAR IRRADIATION, WHICH COMPRISES ADDING MATERIAL SELECTED FROM THE GROUP CONSISTING OF GRAPHITE AND MOLYBDENUM DISULFIDE TO A HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF BIPHENYL, TERPHENYL, QUATERPHENYL, QUINQUEPHENYL, NAPHTHALENE AND ALKYLBENZENES HAVING ALKYL SIDE CHAINS OF 9-15 CARBON ATOMS.
Claim 2
Independent Claim
51 words
A METHOD OF INHIBITING RADIOLITIC DAMAGE TO AN AROMATIC HYDROCARBON UNDER NUCLEAR IRRADIATION, WHICH COMPRISES ADDING MATERIAL SELECTED FROM THE GROUP CONSISTING OF GRAPHITE AND MOLYBDENUM DISULFIDE TO A HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF BIPHENYL, TERPHENYL, QUATERPHENYL, QUINQUEPHENYL, NAPHTHALENE AND ALKYLBENZENES HAVING ALKYL SIDE CHAINS OF 9-15 CARBON ATOMS.
References Cited (Backward Citations)
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Cited
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Cited
US2686156A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |