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US2883376A
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US
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Process of manufacturing nitrostarch
Assignee: VSEVOLD A AMORETTY
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Filing: 1957-08-02
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Granted: 1959-04-21
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Expires: 1977-08-02
Abstract
No abstract record available.
Inventors
- 👤 Ignace A Grageroff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:50
CPC Classifications
C; C08; C08B; C08B31/00; C08B31/02; C08B31/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
48 words
THE METHOD OF MAKING A NITROSTARCH EXPLOSIVE, COMPRISING FIRST FORMING A SATURATED SOLUTION OF STARCH IN A WEAK NITRIC ACID INCAPABLE OF NITRATING THE STARCH AND THEREAFTER NITRATING THE DISSOLVED STARCH BY ADDING TO SAID SOLUTION A MIXED ACID COMPRISING A MIXTURE OF SULPHURIC ACID AND NITRIC ACID.
References Cited (Backward Citations)
US2112989A
Cited
US2678310A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |