US1558631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medium for bleaching, cracking, and desulphurizing petroleum and other hydrocarbon compounds and process of preparing same
Assignee: Individual
•
Filing: 1924-05-19
•
Granted: 1925-10-27
•
Expires: 1944-05-19
Abstract
No abstract record available.
Inventors
- 👤 Reinbold Herman
- 👤 Reinbold Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:09
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/16; B01J27/00; B01J27/06; B01J27/08; B01J27/10; C; C10; C10G; C10G11/00; C10G11/02; C10G11/04
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) | 1928-10-26 | 1929-04-27 | 1929-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-10-26 | 1933-04-27 | 1933-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-10-26 | 1937-04-27 | 1937-10-27 | $7700.00 | Window Closed / Lapsed |