Patent US2442093A successfully refreshed from Google Patents.
US2442093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pyrolysis of fluid hydrocarbons
Assignee: United Gas Improvement Co
•
Filing: 1945-06-18
•
Granted: 1948-05-25
•
Expires: 1965-06-18
Abstract
No abstract record available.
Inventors
- 👤 Milbourne Charles Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:45
CPC Classifications
C; C10; C10J; C10J1/00; C10J1/213; C10G; C10G9/00; C10G9/26; Y; Y10; Y10S; Y10S585/00; Y10S585/909; Y10S585/911
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1777894A
Cited
US1983992A
Cited
US2185566A
Cited
US2174196A
Cited
US2217250A
Cited
US2217636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-25 | 1951-11-24 | 1952-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-25 | 1955-11-24 | 1956-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-25 | 1959-11-24 | 1960-05-25 | $7700.00 | Window Closed / Lapsed |