Patent US3485906A successfully refreshed from Google Patents.
US3485906A
Expired / Lapsed
US
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Melt spinning elastic polypropylene monofilaments
Assignee: Hercules LLC
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Filing: 1967-08-31
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Granted: 1969-12-23
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Expires: 1987-08-31
Abstract
No abstract record available.
Inventors
- 👤 George C Oppenlander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:16
CPC Classifications
F; F16; F16D; F16D7/00; F16D7/04; F16D7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2324397A
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US3054652A
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US3059991A
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US3143584A
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US3127915A
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US3330897A
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US3256258A
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US3215486A
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US3323190A
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US3377415A
Cited
US3382306A
Cited
GB962231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |