US3500629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing a stretch core spun yarn
Assignee: Burlington Industries Inc
•
Filing: 1966-12-06
•
Granted: 1970-03-17
•
Expires: 1986-12-06
Abstract
No abstract record available.
Inventors
- 👤 David Gliksmann
- 👤 David W Petree
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:13
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/36; D02G3/367; D02G1/00; D02G1/02; D02G1/0286
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3125848A
Cited
US3025659A
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US3009309A
Cited
US3137991A
Cited
US3247569A
Cited
US3289401A
Cited
US3287892A
Cited
US3303640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |