Patent US3254103A successfully refreshed from Google Patents.
US3254103A
Expired / Lapsed
US
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Eight coordinate trivalent rare earth metal chelates with beta-diketones
Assignee: EIDP Inc
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Filing: 1963-10-08
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Granted: 1966-05-31
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Expires: 1983-10-08
Abstract
No abstract record available.
Inventors
- 👤 Melby Lester Russell
- 👤 Rose Norman Jenisch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:38
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0091; C07; C07C; C07C49/00; C07C49/92; C07F; C07F5/00; C07F5/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A SALT, IN WHICH THE ANION IS A RARE EARTH METAL CHELATE, OF THE FORMULA
Claim 2
Dependent Claim
15 words
A SALT, IN WHICH THE ANION IS A RARE EARTH METAL CHELATE, OF THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |