US3432389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Core design for nuclear reactor
Assignee: Combustion Engineering Inc
•
Filing: 1966-07-25
•
Granted: 1969-03-11
•
Expires: 1986-07-25
Abstract
No abstract record available.
Inventors
- 👤 Fred M Stern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:07
CPC Classifications
G; G21; G21C; G21C19/00; G21C19/20; G21C19/205; G21C5/00; G21C5/18; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2864758A
Cited
US3235463A
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US3103476A
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US3145150A
Cited
US3168399A
Cited
US3211621A
Cited
US3243351A
Cited
US3262860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |