Patent US3492389A successfully refreshed from Google Patents.
US3492389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Technique for producing synthetic bulk yarns
Assignee: Avisun Corp
•
Filing: 1968-04-26
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Granted: 1970-01-27
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Expires: 1988-04-26
Abstract
No abstract record available.
Inventors
- 👤 Morton I Port
- 👤 Bernard L Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:30
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/02; D01; D01D; D01D5/00; D01D5/42; D01D5/423; Y; Y10; Y10S; Y10S264/00; Y10S264/47
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2918778A
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US3336738A
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US3242035A
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US3330104A
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US3382663A
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US3336174A
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US3327461A
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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 |