Patent US3376622A successfully refreshed from Google Patents.
US3376622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strand treatment
Assignee: Techniservice Corp
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Filing: 1963-07-31
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Granted: 1968-04-09
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Expires: 1983-07-31
Abstract
No abstract record available.
Inventors
- 👤 Robert K Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:43
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A PROCESS FOR DRAWING AND BULKING YARNS OF SYNTHETIC CONTINUOUS FILAMENTS, COMPRISING THE STEPS OF FORWARDING AN UNDRAWN YARN OF SYNTHETIC CONTINUOUS FILAMENTS AT A PREDETERMINED LINEAR RATE TO THE NIP OF ROLLS OF A STUFFER-BOX CRIMPER; ROTATING SAID NIP ROLLS AT A PREDETERMINED PERIPHERAL RATE AT LEAST TWICE AS GREAT AS SAID LINEAR RATE; DRAWING SAID YARN BY THE NIP OF SAID ROLLS; IMMEDIATELY THEREAFTER CRIMPING SAID DRAWN YARN WITHIN SAID CRIMPER; AND DISCHARGING THE CRIMPED YARN FROM SAID CRIMPER AT A LINEAR RATE LESS THAN SAID PERIPHERAL RATE.
Claim 2
Dependent Claim
90 words
A PROCESS FOR DRAWING AND BULKING YARNS OF SYNTHETIC CONTINUOUS FILAMENTS, COMPRISING THE STEPS OF FORWARDING AN UNDRAWN YARN OF SYNTHETIC CONTINUOUS FILAMENTS AT A PREDETERMINED LINEAR RATE TO THE NIP OF ROLLS OF A STUFFER-BOX CRIMPER; ROTATING SAID NIP ROLLS AT A PREDETERMINED PERIPHERAL RATE AT LEAST TWICE AS GREAT AS SAID LINEAR RATE; DRAWING SAID YARN BY THE NIP OF SAID ROLLS; IMMEDIATELY THEREAFTER CRIMPING SAID DRAWN YARN WITHIN SAID CRIMPER; AND DISCHARGING THE CRIMPED YARN FROM SAID CRIMPER AT A LINEAR RATE LESS THAN SAID PERIPHERAL RATE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |