US2632366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wet-treating fibrous matters
Assignee: Individual
•
Filing: 1946-07-08
•
Granted: 1953-03-24
•
Expires: 1966-07-08
Abstract
No abstract record available.
Inventors
- 👤 Ahlfors Sten Eskil Einarsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:22
CPC Classifications
D; D21; D21D; D21D5/00; D21D5/02; D21D5/04; B; B01; B01D; B01D35/00; B01D35/20; B01D35/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US192107A
Cited
US498041A
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US589329A
Cited
GB189824904A
Cited
US682839A
Cited
DE587011C
Cited
US2293978A
Cited
US2276631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |