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Patent US3011328A successfully refreshed from Google Patents.
US3011328A
Expired / Lapsed
US
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Apparatus for liquid treatment of loose fibrous materials
Assignee: Truetzschler Nonwovens GmbH
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Filing: 1958-10-21
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Granted: 1961-12-05
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Expires: 1978-10-21
Abstract
No abstract record available.
Inventors
- 👤 Fleissner Gerold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:19
CPC Classifications
D; D06; D06B; D06B5/00; D06B5/02; D06B5/04; Y; Y10; Y10S; Y10S68/00; Y10S68/902; Y10S68/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE547779A
Cited
US1432319A
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US1483060A
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US1794403A
Cited
US2080635A
Cited
US2494807A
Cited
NL77037C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |