US2030384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of bleaching pulp
Assignee: Nekoosa Edwards Paper Co
•
Filing: 1934-10-18
•
Granted: 1936-02-11
•
Expires: 1954-10-18
Abstract
No abstract record available.
Inventors
- 👤 Arno J Luth
- 👤 Richard A Nugent
- 👤 Neil H Christian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:32
CPC Classifications
D; D21; D21C; D21C9/00; D21C9/10; D21C9/1005
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) | 1939-02-10 | 1939-08-12 | 1940-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-02-10 | 1943-08-12 | 1944-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-02-10 | 1947-08-12 | 1948-02-11 | $7700.00 | Window Closed / Lapsed |