US2797147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposal of sodium residues
Assignee: EIDP Inc
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Filing: 1955-09-29
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Granted: 1957-06-25
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Expires: 1975-09-29
Abstract
No abstract record available.
Inventors
- 👤 Norval D Clare
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:45
CPC Classifications
C; C01; C01D; C01D1/00; C01D1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
THE METHOD OF DISPOSING OF SODIUM RESIDUES, HELD IN A SUBSTANTIALLY FIXED LOCATION, AT TEMPERATURES NOT ABOVE ABOUT 600*F. WHICH COMPRISES (1) CONTACTING THE RESIDUES IN THE SAID LOCATION WITH GASEOUS AMMONIA TO CONVERT THE SAME TO SODAMIDE, (2) CONTACTING THE SODAMIDE WITH WATER VAPOR TO CONVVERT THE SODAMIDE TO SODIUM HYDROXIDE, (3) DISSOLVING THE SODIUM HYDROXIDE IN WATER AND (4) FLOWING THE RESULTANT SOLUTION FROM SAID SUBSTANTIALLY FIXED LOCATION.
Claim 2
Independent Claim
70 words
THE METHOD OF DISPOSING OF SODIUM RESIDUES, HELD IN A SUBSTANTIALLY FIXED LOCATION, AT TEMPERATURES NOT ABOVE ABOUT 600*F. WHICH COMPRISES (1) CONTACTING THE RESIDUES IN THE SAID LOCATION WITH GASEOUS AMMONIA TO CONVERT THE SAME TO SODAMIDE, (2) CONTACTING THE SODAMIDE WITH WATER VAPOR TO CONVVERT THE SODAMIDE TO SODIUM HYDROXIDE, (3) DISSOLVING THE SODIUM HYDROXIDE IN WATER AND (4) FLOWING THE RESULTANT SOLUTION FROM SAID SUBSTANTIALLY FIXED LOCATION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-24 | 1960-12-24 | 1961-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-24 | 1964-12-24 | 1965-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-24 | 1968-12-24 | 1969-06-25 | $7700.00 | Window Closed / Lapsed |