Patent US2623874A successfully refreshed from Google Patents.
US2623874A
Expired / Lapsed
US
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Cellulose-morpholinium derivative composition and process
Assignee: Atlas Powder Co
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Filing: 1950-01-16
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Granted: 1952-12-30
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Expires: 1970-01-16
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:52
CPC Classifications
D; D01; D01F; D01F2/00; D01F2/06; D01F2/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
AS A COMPOSITION OF MATTER, REFINED CELLULOSE PULP HAVING INCORPORATED THEREIN A MINOR PROPORTION OF AN N,N-DIALIPHATIC-HYDROCARBON-RADICAL SUBSTITUTED MORPHOLINIUM ALKYL SULFATE, WHEREIN ONE OF SAID HYDROCARBON RADICALS CONTAINS FROM 12 TO 18 CARBON ATOMS AND THE OTHER OF SAID HYDROCARBON RADICALS IS AN ALKYL RADICAL WITH NOT MORE THAN 2 CARBON ATOMS, AND WHEREIN THE ALKYL SULFATE RADICAL CONTAINS NOT MORE THAN 2 CARBON ATOMS.
Claim 2
Dependent Claim
65 words
AS A COMPOSITION OF MATTER, REFINED CELLULOSE PULP HAVING INCORPORATED THEREIN A MINOR PROPORTION OF AN N,N-DIALIPHATIC-HYDROCARBON-RADICAL SUBSTITUTED MORPHOLINIUM ALKYL SULFATE, WHEREIN ONE OF SAID HYDROCARBON RADICALS CONTAINS FROM 12 TO 18 CARBON ATOMS AND THE OTHER OF SAID HYDROCARBON RADICALS IS AN ALKYL RADICAL WITH NOT MORE THAN 2 CARBON ATOMS, AND WHEREIN THE ALKYL SULFATE RADICAL CONTAINS NOT MORE THAN 2 CARBON ATOMS.
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) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |