Patent US2069322A successfully refreshed from Google Patents.
US2069322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fabric treatment
Assignee: Celanese Corp
•
Filing: 1934-12-28
•
Granted: 1937-02-02
•
Expires: 1954-12-28
Abstract
No abstract record available.
Inventors
- 👤 Mellor Albert
- 👤 Mann Ralph James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:02
CPC Classifications
B; B05; B05C; B05C1/00; B05C1/04; B05C11/00; B05C11/02; B05C11/04; D; D06; D06B; D06B3/00; D06B3/10; D06B2700/00; D06B2700/27
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) | 1940-02-02 | 1940-08-03 | 1941-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-02-02 | 1944-08-03 | 1945-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-02-02 | 1948-08-03 | 1949-02-02 | $7700.00 | Window Closed / Lapsed |