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US2575347A
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Metallo organic compounds
Assignee: Interchemical Corp
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Filing: 1949-07-14
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Granted: 1951-11-20
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Expires: 1969-07-14
Abstract
No abstract record available.
Inventors
- 👤 Charles A Kumins
- 👤 James R Mcnesby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:29
CPC Classifications
C; C07; C07F; C07F15/00; C07F15/02; C07F15/025; C09; C09B; C09B57/00; C09B57/10; C09C; C09C1/00; C09C1/22; C09C1/24; C01; C01P; C01P2006/00; C01P2006/60; C01P2006/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
AS NEW COMPOUNDS, POLYMERS OF FERRIC HYDROXIDE IN WHICH HYDROXYL IS SUBSTITUTED AT LEAST IN PART AND NOT EXCEEDING ONE HYDROXYL GROUP PER THREE ATOMS OF IRON BY AN ACID RADICAL OF THE GROUP CONSISTING OF A FATTY ACID HAVING AT LEAST FOUR CARBON ATOMS AND A NAPHTHENIC ACID.
Claim 2
Dependent Claim
49 words
AS NEW COMPOUNDS, POLYMERS OF FERRIC HYDROXIDE IN WHICH HYDROXYL IS SUBSTITUTED AT LEAST IN PART AND NOT EXCEEDING ONE HYDROXYL GROUP PER THREE ATOMS OF IRON BY AN ACID RADICAL OF THE GROUP CONSISTING OF A FATTY ACID HAVING AT LEAST FOUR CARBON ATOMS AND A NAPHTHENIC ACID.
References Cited (Backward Citations)
US2445770A
Cited
US2389873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |