US3445996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preheating in yarn texturing
Assignee: Warner and Swasey Co
•
Filing: 1967-05-08
•
Granted: 1969-05-27
•
Expires: 1987-05-08
Abstract
No abstract record available.
Inventors
- 👤 Emil J Berger Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:10
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/02; D02G1/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2890568A
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US2987869A
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US3270492A
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US3192697A
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US3321904A
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US3355872A
Cited
US3289400A
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US3395524A
Cited
US3396524A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |