US3374149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nuclear reactor heat transfer system
Assignee: North American Aviation Corp
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Filing: 1967-05-19
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Granted: 1968-03-19
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Expires: 1987-05-19
Abstract
No abstract record available.
Inventors
- 👤 Harold C Parris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:12
CPC Classifications
G; G21; G21D; G21D5/00; G21D5/04; G21D5/08; F; F28; F28F; F28F21/00; F28F21/08; F28F21/081; F28F21/082; F28F21/083; Y; Y02; Y02E; Y02E30/00; Y10; Y10S; Y10S376/00; Y10S376/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-19 | 1971-09-18 | 1972-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-19 | 1975-09-18 | 1976-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-19 | 1979-09-18 | 1980-03-19 | $7700.00 | Window Closed / Lapsed |