Patent US2300935A successfully refreshed from Google Patents.
Patent US2000953A successfully refreshed from Google Patents.
US2000953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for reacting semifluid materials
Assignee: Occidental Chemical Corp
•
Filing: 1933-10-30
•
Granted: 1935-05-14
•
Expires: 1953-10-30
Abstract
No abstract record available.
Inventors
- 👤 Hooker Paul
- 👤 John D Rue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:58
CPC Classifications
D; D21; D21C; D21C9/00; D21C9/10; B; B01; B01F; B01F27/00; B01F27/05; B01F27/11; B01F27/19; B01F27/192; B01F27/1921
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) | 1938-05-13 | 1938-11-12 | 1939-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-05-13 | 1942-11-12 | 1943-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-05-13 | 1946-11-12 | 1947-05-14 | $7700.00 | Window Closed / Lapsed |