US3467481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of dyeing polyethylene tereph-thalate polymer films,strands and yarns
Assignee: Keuffel and Esser Co
•
Filing: 1964-10-23
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Granted: 1969-09-16
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Expires: 1984-10-23
Abstract
No abstract record available.
Inventors
- 👤 Robert M Gold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:22
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/34; D06P3/52; D06P3/54; D06M; D06M11/00; D06M11/07; D06M11/11; D06M11/22; D06M13/00; D06M13/10; D06M13/144; D06M13/152; D06M13/184; D06M13/207; D06M13/21; D06P1/00; D06P1/44; D06P1/46; D06P1/64; D06P1/651; D06P1/65106; D06P1/65118; D06P1/653; D06P1/6533; D06P1/90; D06P1/92; D06P1/922; D06P1/928; D06P3/521; D06P3/522; D06P3/79
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2548853A
Cited
US2957745A
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US3034847A
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US3169043A
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US3275400A
Cited
US3307900A
Cited
US3305603A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |