Patent US3104969A successfully refreshed from Google Patents.
US3104969A
Expired / Lapsed
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Nitrogen solutions with corrosion inhibitor
Assignee: Spencer Chemical Co
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Filing: 1958-04-25
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Granted: 1963-09-24
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Expires: 1978-04-25
Abstract
No abstract record available.
Inventors
- 👤 Ralph D Miller
- 👤 Warren E Stanford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:57
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; Y; Y10; Y10S; Y10S71/00; Y10S71/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A SOLUTION COMPRISING AQUEOUS AMMONIUM NITRATE, A MEMBER OF THE GROUP CONSISTING OF AMMONIUM THIOCYANATE AND ALKALI METAL THIOCYANATES AND A WATER SOLUBLE INORGANIC SALT OF THE LIGNIN CONTAINING MATERIAL PRESENT IN CHEMICAL AND SEMICHEMICA PULPING WASTE LIQUOR FROM THE PULPING OF RAW CELLULOSIC MATERIAL BY THE PROCESSES CONSISTING OF SULFITE, SULFATE AND SODA PROCESSES.
Claim 2
Dependent Claim
55 words
A SOLUTION COMPRISING AQUEOUS AMMONIUM NITRATE, A MEMBER OF THE GROUP CONSISTING OF AMMONIUM THIOCYANATE AND ALKALI METAL THIOCYANATES AND A WATER SOLUBLE INORGANIC SALT OF THE LIGNIN CONTAINING MATERIAL PRESENT IN CHEMICAL AND SEMICHEMICA PULPING WASTE LIQUOR FROM THE PULPING OF RAW CELLULOSIC MATERIAL BY THE PROCESSES CONSISTING OF SULFITE, SULFATE AND SODA PROCESSES.
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) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |