Patent US3275591A successfully refreshed from Google Patents.
US3275591A
Expired / Lapsed
US
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Pigmentation of polypropylene filaments and fibers
Assignee: FMC Corp
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Filing: 1961-05-15
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Granted: 1966-09-27
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Expires: 1981-05-15
Abstract
No abstract record available.
Inventors
- 👤 Arthur R Tomlinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:00
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/203; B; B29; B29B; B29B7/00; B29B7/002; D; D01; D01F; D01F1/00; D01F1/02; D01F1/04; D01F6/00; D01F6/02; D01F6/04; D01F6/06
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |