Patent US2613522A successfully refreshed from Google Patents.
US2613522A
Expired / Lapsed
US
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Apparatus for treating fabrics and uncurling the edges thereof
Assignee: Akzo Nobel UK PLC
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Filing: 1949-09-14
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Granted: 1952-10-14
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Expires: 1969-09-14
Abstract
No abstract record available.
Inventors
- 👤 Robert D Heffelfinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:56
CPC Classifications
D; D06; D06C; D06C5/00; D06M; D06M23/00; D06M23/16; D06M23/18; Y; Y10; Y10S; Y10S112/00; Y10S112/02; Y10S26/00; Y10S26/01; Y10S8/00; Y10S8/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1912446A
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US1997267A
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US2267117A
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US2157118A
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US2313173A
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US2365931A
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US2346208A
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US2361371A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-14 | 1956-04-14 | 1956-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-14 | 1960-04-14 | 1960-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-14 | 1964-04-14 | 1964-10-14 | $7700.00 | Window Closed / Lapsed |