US2480823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of metal derivatives of organic compounds containing a replaceable hydrogen
Assignee: Texaco Inc
•
Filing: 1947-04-23
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Granted: 1949-09-06
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Expires: 1967-04-23
Abstract
No abstract record available.
Inventors
- 👤 John R Morris
- 👤 Joseph E Fields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:37
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/64; C07C65/00; C07C65/01; C07C65/03; C07C65/05; C07C65/10; C07F; C07F19/00; C07F19/005
Claims Analysis
Total Claims: 0
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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) | 1952-09-05 | 1953-03-07 | 1953-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-05 | 1957-03-07 | 1957-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-05 | 1961-03-07 | 1961-09-06 | $7700.00 | Window Closed / Lapsed |