US3349575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warp knit fabric with looped yarn surface
Assignee: Individual
•
Filing: 1965-09-15
•
Granted: 1967-10-31
•
Expires: 1985-09-15
Abstract
No abstract record available.
Inventors
- 👤 Schwartz Alvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:02
CPC Classifications
D; D04; D04B; D04B23/00; D04B23/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A METHOD OF KNITTING A PILE FABRIC ON A WARP KNITTING MACHINE PROVIDED WITH THREE YARN GUIDE BARS COMPRISING THE STEPS; SUPPLYING A GROUND YARN UNDER NORMAL TENSION TO THE GUIDES OF A BACK GUIDE BAR, KNITTING SAID GROUND YARN ON EVERY NEEDLE IN EACH SOURCE TO FORM A GROUND FABRIC, SUPPLYING A PILE YARN UNDER RELATIVELY LOW TENSION TO THE GUIDE BAR, KNITTING SAID PILE YARN ON EVERY NEEDLE IN SPACED COURSES ONLY TO FORM THE PILE, SUPPLYING A DIFFERENT YARN UNDER NORMAL TENSION TO THE GUIDES OF A FRONT BAR, KNITTING SAID DIFFERENT YARN ON THE SAME NEEDLES IN THE SAME COURSES ONLY AS SAID PILE FORMING YARN AND ACCORDING TO A PATTERN SAID DIFFERENT YARN TO POSITION ITSELF ON THE FRONT OF SAID GROUND FABRIC AT THE BASE OF THE PILE FOR OPPOSING RECEDING MOVEMENT OF THE PILE LOOP.
Claim 2
Independent Claim
142 words
A METHOD OF KNITTING A PILE FABRIC ON A WARP KNITTING MACHINE PROVIDED WITH THREE YARN GUIDE BARS COMPRISING THE STEPS; SUPPLYING A GROUND YARN UNDER NORMAL TENSION TO THE GUIDES OF A BACK GUIDE BAR, KNITTING SAID GROUND YARN ON EVERY NEEDLE IN EACH SOURCE TO FORM A GROUND FABRIC, SUPPLYING A PILE YARN UNDER RELATIVELY LOW TENSION TO THE GUIDE BAR, KNITTING SAID PILE YARN ON EVERY NEEDLE IN SPACED COURSES ONLY TO FORM THE PILE, SUPPLYING A DIFFERENT YARN UNDER NORMAL TENSION TO THE GUIDES OF A FRONT BAR, KNITTING SAID DIFFERENT YARN ON THE SAME NEEDLES IN THE SAME COURSES ONLY AS SAID PILE FORMING YARN AND ACCORDING TO A PATTERN SAID DIFFERENT YARN TO POSITION ITSELF ON THE FRONT OF SAID GROUND FABRIC AT THE BASE OF THE PILE FOR OPPOSING RECEDING MOVEMENT OF THE PILE LOOP.
References Cited (Backward Citations)
US2267578A
Cited
US2019258A
Cited
US2379852A
Cited
US3063272A
Cited
GB883111A
Cited
US3109302A
Cited
US3111829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |