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Patent US3332749A successfully refreshed from Google Patents.
US3332749A
Expired / Lapsed
US
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Carbonyl compounds containing iron and cobalt and process for producing said compounds
Assignee: Montedison SpA
•
Filing: 1960-06-20
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Granted: 1967-07-25
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Expires: 1980-06-20
Abstract
No abstract record available.
Inventors
- 👤 Natta Giulio
- 👤 Chini Paolo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:27
CPC Classifications
C; C01; C01G; C01G1/00; C01G1/04; C01G51/00; C01G51/02; C07; C07F; C07F15/00; C07F15/06; C07F15/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
METALLOCARBONYL COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
5 words
METALLOCARBONYL COMPOUNDS OF THE FORMULA
References Cited (Backward Citations)
US2849471A
Cited
US3188335A
Cited
US2967087A
Cited
US2942936A
Cited
US2968665A
Cited
US3096266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |