Patent US2437334A successfully refreshed from Google Patents.
US2437334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controlling chemical reactions
Assignee: Standard Oil Development Co
•
Filing: 1944-11-23
•
Granted: 1948-03-09
•
Expires: 1964-11-23
Abstract
No abstract record available.
Inventors
- 👤 Bruno E Roethell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:26
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/32; C07C5/321; C07C5/322
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1763609A
Cited
US2209215A
Cited
US2253486A
Cited
US2302209A
Cited
US2376833A
Cited
US2399050A
Cited
US2405395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-09 | 1951-09-08 | 1952-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-09 | 1955-09-08 | 1956-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-09 | 1959-09-08 | 1960-03-09 | $7700.00 | Window Closed / Lapsed |