US2470092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dehydrogenation process
Assignee: Beazer East Inc
•
Filing: 1944-10-09
•
Granted: 1949-05-17
•
Expires: 1964-10-09
Abstract
No abstract record available.
Inventors
- 👤 Corson Ben Bennett
- 👤 Webb George Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:32
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/32; C07C5/373; C07C5/393; C07C5/41; C07C5/415; B; B01; B01J; B01J23/00; B01J23/70; C07C5/321; C07C5/324; C07C5/327; C07C5/333; C07C5/3335; B01J37/00; B01J37/02; B01J37/0201
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-16 | 1952-11-15 | 1953-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-16 | 1956-11-15 | 1957-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-16 | 1960-11-15 | 1961-05-17 | $7700.00 | Window Closed / Lapsed |