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US3422181A
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Method for heat setting of stretch oriented polyglycolic acid filament
Assignee: Wyeth Holdings LLC
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Filing: 1966-05-23
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Granted: 1969-01-14
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Expires: 1986-05-23
Abstract
No abstract record available.
Inventors
- 👤 Lester Daniel Chirgwin Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:07
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/58; D01F6/62; D01F6/625; A; A61; A61L; A61L17/00; A61L17/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2676945A
Cited
US3297033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |