US3379709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organo-chromium complexes and their preparation
Assignee: Individual
•
Filing: 1963-03-18
•
Granted: 1968-04-23
•
Expires: 1983-03-18
Abstract
No abstract record available.
Inventors
- 👤 William G Louden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:26
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0091; C07; C07F; C07F11/00; C07F11/005; C08K5/04; C08K5/09; C08K5/098
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2273040A
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US2356161A
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US2524803A
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US2681922A
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US2683156A
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US2809121A
Cited
US3256266A
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US3194823A
Cited
US3248215A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |