US3492142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for manufacture of surface modified thermoplastic fibers and filaments
Assignee: Dow Chemical Co
•
Filing: 1965-06-28
•
Granted: 1970-01-27
•
Expires: 1985-06-28
Abstract
No abstract record available.
Inventors
- 👤 John H Sanders
- 👤 Rupert B Hurley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:52
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/06; D01F; D01F8/00; D01F8/04; D01F8/08; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/298
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA665029A
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US2859135A
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US2628172A
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US2686736A
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US2714075A
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US3019132A
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US2971245A
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US3047426A
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US2988782A
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US3122443A
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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) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |