US2615031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of chromic salts
Assignee: ExxonMobil Oil Corp
•
Filing: 1950-07-18
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Granted: 1952-10-21
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Expires: 1970-07-18
Abstract
No abstract record available.
Inventors
- 👤 William A Stover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:41
CPC Classifications
C; C07; C07F; C07F11/00; C07F11/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A PROCESS FOR PREPARING THE CHROMIC SALT OF A LOW MOLECULAR WEIGHT FATTY ACID, WHICH COMPRISES REDUCING CR+6 TO CR+3 WITH GLYCOLLIC ACID IN THE PRESENCE OF A MONO-BASIC FATTY ACID HAVING NOT MORE THAN SIX CARBON ATOMS.
Claim 2
Dependent Claim
38 words
A PROCESS FOR PREPARING THE CHROMIC SALT OF A LOW MOLECULAR WEIGHT FATTY ACID, WHICH COMPRISES REDUCING CR+6 TO CR+3 WITH GLYCOLLIC ACID IN THE PRESENCE OF A MONO-BASIC FATTY ACID HAVING NOT MORE THAN SIX CARBON ATOMS.
References Cited (Backward Citations)
US2428356A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |