Patent US3470285A successfully refreshed from Google Patents.
US3470285A
Expired / Lapsed
US
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Making synthetic filaments from fibrillated film
Assignee: Hercules LLC
•
Filing: 1967-08-04
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Granted: 1969-09-30
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Expires: 1987-08-04
Abstract
No abstract record available.
Inventors
- 👤 Charles W Kim
- 👤 Stanley D Samluk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:54
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/42; D01D5/426; D02; D02G; D02G1/00; D02G1/10; Y; Y10; Y10S; Y10S264/00; Y10S264/47; Y10T; Y10T83/00; Y10T83/647; Y10T83/6584; Y10T83/6587
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3112160A
Cited
GB404219A
Cited
US2297622A
Cited
US2327087A
Cited
US2728950A
Cited
US3225634A
Cited
US3273771A
Cited
US3283788A
Cited
US3398441A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |