Patent US2849450A successfully refreshed from Google Patents.
US2849450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of salts of alkyl acid sulfates in one step
Assignee: Eastman Kodak Co
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Filing: 1956-04-18
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Granted: 1958-08-26
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Expires: 1976-04-18
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert C Harrington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:06
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/02; C07D295/027; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/46; A61K8/466; C07C; C07C213/00; C07C213/08; C07C303/00; C07C303/24; C07D213/00; C07D213/02; C07D213/04; C07D213/06; C07D213/16; C07D213/18; A61Q; A61Q5/00; A61Q5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A PROCESS OF MANUFACTURING SUBSTITUTED AMMONIUM SALTS OF SULFATED LONG CHAIN ALCOHOLS WHEREIN THE ALCOHOL CHAIN IS OF 5-20 CARBON ATOMS, THE SALTS HAVING GOOD COLOR AND BEING PRODUCED IN SUBSTANTIALLY ONE STEP WHICH COMPRISE PREMIXING SAID K-20 CARBON ATOM ALCOHOL WITH A NITROGEN CONTAINING COMPOUND FROM THE GROUP CONSISTING OF ALKYLOL AMINES AND MORPHOLINE, THEN BRINGING THE AFOREMENTIONED PREMIXTURE INTO REACTIVE CONTACT WITH A SULFATING AGENT FROM THE GROUP CONSISTING OF SULFURIC ACID AND CHLOROSULFONIC ACID WHILE AGITING THE AFORESAID MATERIALS.
Claim 2
Dependent Claim
82 words
A PROCESS OF MANUFACTURING SUBSTITUTED AMMONIUM SALTS OF SULFATED LONG CHAIN ALCOHOLS WHEREIN THE ALCOHOL CHAIN IS OF 5-20 CARBON ATOMS, THE SALTS HAVING GOOD COLOR AND BEING PRODUCED IN SUBSTANTIALLY ONE STEP WHICH COMPRISE PREMIXING SAID K-20 CARBON ATOM ALCOHOL WITH A NITROGEN CONTAINING COMPOUND FROM THE GROUP CONSISTING OF ALKYLOL AMINES AND MORPHOLINE, THEN BRINGING THE AFOREMENTIONED PREMIXTURE INTO REACTIVE CONTACT WITH A SULFATING AGENT FROM THE GROUP CONSISTING OF SULFURIC ACID AND CHLOROSULFONIC ACID WHILE AGITING THE AFORESAID MATERIALS.
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) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |