US2885893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactor control mechanism
Assignee: Individual
•
Filing: 1954-02-23
•
Granted: 1959-05-12
•
Expires: 1974-02-23
Abstract
No abstract record available.
Inventors
- 👤 James A Lane
- 👤 Ralph E Engberg
- 👤 Jack M Welch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:54
CPC Classifications
G; G21; G21C; G21C7/00; G21C7/06; G21C7/08; G21C7/12; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17666; Y10T279/17692; Y10T279/17743; Y10T279/17752; Y10T403/00; Y10T403/59; Y10T403/591; Y10T403/592; Y10T403/599; Y10T74/00; Y10T74/11; Y10T74/18; Y10T74/18056; Y10T74/18176; Y10T74/18182; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/20588; Y10T74/20636
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE464754C
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US1935715A
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US2139193A
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US2130559A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |