US3088958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chromium complexes of perfluoroether acids, articles coated therewith and a process for their preparation
Assignee: EIDP Inc
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Filing: 1960-11-03
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Granted: 1963-05-07
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Expires: 1980-11-03
Abstract
No abstract record available.
Inventors
- 👤 Herbert S Eleuterio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:07
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/10; D06M13/224; D06M13/236; C; C07; C07C; C07C59/00; C07C59/125; C07C59/135; C07F; C07F11/00; C07F11/005; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31971; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/2172
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
26 words
A COMPOSITION COMPRISING COMPLEXES OF THE WERNER TYPE IN WHICH TRIVALENT NUCLEAR CHROMIUM ATOMS ARE COORDINATED WITH A MIXTURE OF PERFLUORO ETHER ACIDS HAVING THE FORMULA
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) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |