US2942325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of treating undrawn polyester yarns and filaments
Assignee: EIDP Inc
•
Filing: 1957-05-14
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Granted: 1960-06-28
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Expires: 1977-05-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Floyd E Spellman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:16
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/221; D01; D01F; D01F6/00; D01F6/58; D01F6/62; D01F6/78; D01F6/84; Y; Y10; Y10S; Y10S264/00; Y10S264/73
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |