Patent US3303004A successfully refreshed from Google Patents.
US3303004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for dissolving stainless steel members
Assignee: Individual
•
Filing: 1965-04-06
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Granted: 1967-02-07
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Expires: 1985-04-06
Abstract
No abstract record available.
Inventors
- 👤 Melvin R Bennett
- 👤 George I Cathers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:17
CPC Classifications
G; G21; G21C; G21C19/00; G21C19/34; G21C19/38; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
39 words
A METHOD FOR DISSOLVING STAINLESS STEEL CONTAINING MEMBERS COMPRISING THE STEP OF CONTACTING SAID MEMBER WITH A GASEOUS REACTION MIXTURE OF ANHYDROUS HF AND AN OXYGEN CONTAINING GAS AT A TEMPERATURE BETWEEN 550%650%C., THEREBY OXIDIZING SAID STAINLESS STEEL CLADDING.
Claim 2
Independent Claim
39 words
A METHOD FOR DISSOLVING STAINLESS STEEL CONTAINING MEMBERS COMPRISING THE STEP OF CONTACTING SAID MEMBER WITH A GASEOUS REACTION MIXTURE OF ANHYDROUS HF AND AN OXYGEN CONTAINING GAS AT A TEMPERATURE BETWEEN 550%650%C., THEREBY OXIDIZING SAID STAINLESS STEEL CLADDING.
Claim 3
Independent Claim
81 words
A METHOD FOR THE SEPARATION AND RECOVERY OF FUEL VALUES FROM STAINLESS STEEL CLAD SPENT URANIUM OR PLUTONIUM OXIDE FUELS COMPRISING IMMERSING SAID FUELS IN A FLUIDIZED BED, FLUIDIZING SAID BED WITH AN ANHYDROUS GASEOUS REACTION MIXTURE COMPRISING 40 VOLUME PERCENT HF IN OXYGEN WHILE MAINTAINING SAID BED AT A TEMPERATURE WITHIN THE RANGE OF 550%-650%C. TO THEREBY EFFECT AN OXIDATION OF SAID STAINLESS STEEL CLADDING AND THEREAFTER SEPARATELY RECOVERING SAID URANIUM OR PLUTONIUM OXIDE FUEL VALUES FROM SAID DECLAD FUELS.
Claim 4
Independent Claim
81 words
A METHOD FOR THE SEPARATION AND RECOVERY OF FUEL VALUES FROM STAINLESS STEEL CLAD SPENT URANIUM OR PLUTONIUM OXIDE FUELS COMPRISING IMMERSING SAID FUELS IN A FLUIDIZED BED, FLUIDIZING SAID BED WITH AN ANHYDROUS GASEOUS REACTION MIXTURE COMPRISING 40 VOLUME PERCENT HF IN OXYGEN WHILE MAINTAINING SAID BED AT A TEMPERATURE WITHIN THE RANGE OF 550%-650%C. TO THEREBY EFFECT AN OXIDATION OF SAID STAINLESS STEEL CLADDING AND THEREAFTER SEPARATELY RECOVERING SAID URANIUM OR PLUTONIUM OXIDE FUEL VALUES FROM SAID DECLAD FUELS.
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |