Patent US3511905A successfully refreshed from Google Patents.
US3511905A
Expired / Lapsed
US
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Process for the preparation of synthetic polymer filaments
Assignee: Viscosuisse SA
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Filing: 1967-08-22
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Granted: 1970-05-12
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Expires: 1987-08-22
Abstract
No abstract record available.
Inventors
- 👤 Horst G Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:30
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/08; D01D5/12; D01D5/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2957747A
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GB960500A
Cited
FR1421298A
Cited
US3271943A
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US3436797A
Cited
US3304163A
Cited
US3380135A
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US3364294A
Cited
US3341394A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |