Patent US1787133A successfully refreshed from Google Patents.
Patent US2323644A successfully refreshed from Google Patents.
US2323644A
Expired / Lapsed
US
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Machine for cutting staple fibers
Assignee: Akzo Nobel UK PLC
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Filing: 1942-04-30
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Granted: 1943-07-06
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Expires: 1962-04-30
Abstract
No abstract record available.
Inventors
- 👤 Carl A Castellan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:03
CPC Classifications
D; D01; D01G; D01G1/00; D01G1/02; D01G1/04; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2904; Y10T83/00; Y10T83/202; Y10T83/2066; Y10T83/207; Y10T83/2074; Y10T83/647; Y10T83/6473; Y10T83/6476
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) | 1946-07-05 | 1947-01-04 | 1947-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-07-05 | 1951-01-04 | 1951-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-07-05 | 1955-01-04 | 1955-07-06 | $7700.00 | Window Closed / Lapsed |