US2378236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of ethylene
Assignee: Airco Inc
•
Filing: 1944-05-02
•
Granted: 1945-06-12
•
Expires: 1964-05-02
Abstract
No abstract record available.
Inventors
- 👤 Hoke S Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:24
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/20; C07C1/24; C07C2521/00; C07C2521/16; Y; Y02; Y02P; Y02P30/00; Y02P30/20; Y02P30/40
Claims Analysis
Total Claims: 0
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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) | 1948-06-11 | 1948-12-11 | 1949-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-06-11 | 1952-12-11 | 1953-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-06-11 | 1956-12-11 | 1957-06-12 | $7700.00 | Window Closed / Lapsed |