US3299109A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminium, titanium and zirconium chelate compounds of perfluoralkylcarboxylic acids and process for making same
Assignee: Chemische Fabrik Pfersee GmbH
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Filing: 1962-08-28
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Granted: 1967-01-17
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Expires: 1982-08-28
Abstract
No abstract record available.
Inventors
- 👤 Sander Manfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:25
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/10; D06M13/224; D06M13/236; C; C07; C07F; C07F5/00; C07F5/06; C07F5/069; C07F7/00; C07F7/003; C14; C14C; C14C11/00; C14C9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A CHELATE OF A PREFLUOROCARBOXYLIC ACID METAL SALT AND A BETA-DICARBONYL CHELATE-FORMING COMPOUND, SAID METAL BEING SELECTED FROM THE GROUP CONSISTING OF ALUMINIUM, TITANIUM AND ZIRCONIUM.
Claim 2
Dependent Claim
26 words
A CHELATE OF A PREFLUOROCARBOXYLIC ACID METAL SALT AND A BETA-DICARBONYL CHELATE-FORMING COMPOUND, SAID METAL BEING SELECTED FROM THE GROUP CONSISTING OF ALUMINIUM, TITANIUM AND ZIRCONIUM.
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |