Patent US2484067A successfully refreshed from Google Patents.
US2484067A
Expired / Lapsed
US
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Production of unsaturated organic compounds
Assignee: Carbide and Carbon Chemicals Corp
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Filing: 1949-01-29
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Granted: 1949-10-11
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Expires: 1969-01-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Albert B Boese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:00
CPC Classifications
C; C07; C07C; C07C59/00; C07C59/40; C07C59/58; C07C51/00; C07C57/00; C07C57/02; C07C57/03; C07C57/30; C07C57/42
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) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |