Patent US3612687A successfully refreshed from Google Patents.
US2784458A
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US
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Process and apparatus for converting continuous filamentary material into filaments of staple length
Assignee: Deering Milliken Research Corp
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Filing: 1949-07-08
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Granted: 1957-03-12
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Expires: 1969-07-08
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Preston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:52
CPC Classifications
D; D01; D01G; D01G1/00; D01G1/06; D01G1/08; D01G1/081; D01G1/085
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) | 1960-03-11 | 1960-09-10 | 1961-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-11 | 1964-09-10 | 1965-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-11 | 1968-09-10 | 1969-03-12 | $7700.00 | Window Closed / Lapsed |