US3543358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for increasing the bulk of multifilament yarn
Assignee: EIDP Inc
•
Filing: 1967-10-24
•
Granted: 1970-12-01
•
Expires: 1987-10-24
Abstract
No abstract record available.
Inventors
- 👤 Alvin L Breen
- 👤 Herbert G Lauterbach
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; D02G1/168
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2435891A
Cited
US2379824A
Cited
US2447982A
Cited
US2852906A
Cited
US2863280A
Cited
US3085389A
Cited
US2874446A
Cited
US3009309A
Cited
US2869967A
Cited
US3156028A
Cited
US3036357A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |