US3530660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacturing a mechanically crimped yarn and products thereof
Assignee: Celanese Corp
•
Filing: 1965-07-12
•
Granted: 1970-09-29
•
Expires: 1985-07-12
Abstract
No abstract record available.
Inventors
- 👤 Carl Edward Kirchner Jr
- 👤 William Moseley Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:10
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/08; D02G; D02G1/00; D02G1/12; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3126095A
Cited
US2972798A
Cited
US3099594A
Cited
US3099064A
Cited
US3110151A
Cited
US3309855A
Cited
US3157022A
Cited
BE658465A
Cited
GB1064765A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |