Patent US2056069A successfully refreshed from Google Patents.
Patent US2031938A successfully refreshed from Google Patents.
US2031938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the halogenation of organic fluids
Assignee: Shell Development Co
•
Filing: 1932-09-06
•
Granted: 1936-02-25
•
Expires: 1952-09-06
Abstract
No abstract record available.
Inventors
- 👤 Richard M Deanesly
- 👤 Hearne George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:40
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/10; C07B; C07B39/00; C07C17/07; C07C17/08; C07C17/087
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1939-02-24 | 1939-08-26 | 1940-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-02-24 | 1943-08-26 | 1944-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-02-24 | 1947-08-26 | 1948-02-25 | $7700.00 | Window Closed / Lapsed |