US1998551A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mercerizing process
Assignee: IG Farbenindustrie AG
•
Filing: 1932-03-25
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Granted: 1935-04-23
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Expires: 1952-03-25
Abstract
No abstract record available.
Inventors
- 👤 Mahn Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:59
CPC Classifications
D; D06; D06B; D06B7/00; D06B7/04; D06B7/06; D06B7/08; D06M; D06M11/00; D06M11/58; D06M11/59; D06M11/61; D06M2101/00; D06M2101/02; D06M2101/04; D06M2101/06
Claims Analysis
Total Claims: 0
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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) | 1938-04-22 | 1938-10-22 | 1939-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-04-22 | 1942-10-22 | 1943-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-04-22 | 1946-10-22 | 1947-04-23 | $7700.00 | Window Closed / Lapsed |