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Patent US2717418A successfully refreshed from Google Patents.
US2717418A
Expired / Lapsed
US
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Band spinning apparatus
Assignee: Celanese Corp
•
Filing: 1951-01-24
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Granted: 1955-09-13
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Expires: 1971-01-24
Abstract
No abstract record available.
Inventors
- 👤 Rene P Piperoux
- 👤 Robert T Armstrong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:46
CPC Classifications
D; D01; D01D; D01D1/00; D01D1/06; Y; Y10; Y10S; Y10S165/00; Y10S165/225
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2437263A
Cited
US1945548A
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US2050100A
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US2279548A
Cited
US2439966A
Cited
US2514189A
Cited
US2605502A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |