US3448500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of bulking yarn
Assignee: Owens Corning
•
Filing: 1966-12-29
•
Granted: 1969-06-10
•
Expires: 1986-12-29
Abstract
No abstract record available.
Inventors
- 👤 Gustav E Benson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:46
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2783609A
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US2852906A
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US2884756A
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US2874443A
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US2982082A
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US2958112A
Cited
US2959909A
Cited
US3053038A
Cited
US3110151A
Cited
US3084413A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |