US3083073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the fluid treatment of strands of elongated material
Assignee: Wyeth Holdings LLC
•
Filing: 1960-06-23
•
Granted: 1963-03-26
•
Expires: 1980-06-23
Abstract
No abstract record available.
Inventors
- 👤 Richard W Leins
- 👤 William R Osban
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:55
CPC Classifications
D; D06; D06B; D06B23/00; D06B23/14; D06B23/16; D01; D01D; D01D10/00; D01D10/02; D01D10/04; D01D10/0436; D01D10/0472; D02; D02G; D02G1/00; D02G1/20; D02G1/205
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
IN A CONTINUOUS METHOD OF TREATING CONTINUOUSLY MOVING STRANDS OF ELONGATED SYNTHETIC FIBROUS MATERIAL IN A ZONE MAINTAINED UNDER SUPERATMOSPHERIC PRESSURE WITH A HOT FLUID MEDIUM UNDER CONDITIONS SUFFICIENT TO CAUSE SOFTENING THEREOF AND REMOVING SUCH CONTINUOUSLY MOVING STRANDS FROM SAID ZONE THROUGH A PRESSURE SEAL, THE IMPROVEMENT WHICH CONSISTS IN COOLING SAID STRANDS TO BELOW THE SOFTENING POINT BY A LIQUID COOLANT WHILE UNDERSSUPERATMOSPHERIC PRESSURE PRIOR TO PASSAGE THROUGH SAID PRESSURE SEAL.
Claim 2
Dependent Claim
73 words
IN A CONTINUOUS METHOD OF TREATING CONTINUOUSLY MOVING STRANDS OF ELONGATED SYNTHETIC FIBROUS MATERIAL IN A ZONE MAINTAINED UNDER SUPERATMOSPHERIC PRESSURE WITH A HOT FLUID MEDIUM UNDER CONDITIONS SUFFICIENT TO CAUSE SOFTENING THEREOF AND REMOVING SUCH CONTINUOUSLY MOVING STRANDS FROM SAID ZONE THROUGH A PRESSURE SEAL, THE IMPROVEMENT WHICH CONSISTS IN COOLING SAID STRANDS TO BELOW THE SOFTENING POINT BY A LIQUID COOLANT WHILE UNDERSSUPERATMOSPHERIC PRESSURE PRIOR TO PASSAGE THROUGH SAID PRESSURE SEAL.
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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) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |