Patent US4800887A successfully refreshed from Google Patents.
Patent US3985514A successfully refreshed from Google Patents.
US3985514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot rolled composite billet for nuclear control rods
Assignee: Atlantic Richfield Co
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Filing: 1975-04-28
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Granted: 1976-10-12
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Expires: 1995-04-28
Abstract
Abstract This invention relates to a composite plate shaped billet, useful in the fabrication of nuclear control rods, which comprises a core of stainless steel containing about 2% Boron 10, a thin coating of zirconia on the surfaces of said core, said core and said zirconia coating being completely encased in a jacket of mild steel, said composite having been hot rolled between about 1075 DEG and about 1165 DEG C.
Inventors
- 👤 Gary E. Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:53
CPC Classifications
B; B21; B21B; B21B3/00; B21B3/02; C; C21; C21D; C21D1/00; C21D1/68; C21D8/00; C21D8/02; G; G21; G21C; G21C21/00; G21C21/18; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12951; Y10T428/12972
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A composite plate shaped billet comprising a core of stainless steel containing about 2% Boron 10, a thin coating of zirconia on the surfaces of said core, said core and said zirconia coating being completely encased in a jacket of mild steel, said composite having been hot rolled between about 1075° and about 1165° C.
Claim 2
Dependent Claim
55 words
A composite plate shaped billet comprising a core of stainless steel containing about 2% Boron 10, a thin coating of zirconia on the surfaces of said core, said core and said zirconia coating being completely encased in a jacket of mild steel, said composite having been hot rolled between about 1075° and about 1165° C.
References Cited (Backward Citations)
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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) | 1979-10-12 | 1980-04-12 | 1980-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-12 | 1984-04-12 | 1984-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-12 | 1988-04-12 | 1988-10-12 | $7700.00 | Window Closed / Lapsed |