US2483198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of treatment of ligno-cellulosic material and product resulting therefrom
Assignee: Individual
•
Filing: 1943-03-16
•
Granted: 1949-09-27
•
Expires: 1963-03-16
Abstract
No abstract record available.
Inventors
- 👤 Horace W Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:41
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1370023A
Cited
US688420A
Cited
US885376A
Cited
US1284296A
Cited
US1589094A
Cited
US1796631A
Cited
US2021348A
Cited
US2252157A
Cited
US2366025A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-26 | 1953-03-28 | 1953-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-26 | 1957-03-28 | 1957-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-26 | 1961-03-28 | 1961-09-27 | $7700.00 | Window Closed / Lapsed |