US2871511A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Melt spinning apparatus
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1954-08-24
•
Granted: 1959-02-03
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Expires: 1974-08-24
Abstract
No abstract record available.
Inventors
- 👤 Speakman Raymond Holden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:41
CPC Classifications
D; D01; D01D; D01D4/00; D01D4/08; B; B01; B01D; B01D24/00; B01D24/02; B01D24/04; F; F02; F02K; F02K1/00; F02K1/06; F02K1/15; F02K1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1983330A
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US2266368A
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US2266363A
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US2253073A
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US2528260A
Cited
US2571486A
Cited
DE863841C
Cited
US2589870A
Cited
US2803851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |