US2768057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drawing of organic high polymers
Assignee: Phrix Werke AG
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Filing: 1955-02-10
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Granted: 1956-10-23
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Expires: 1975-02-10
Abstract
No abstract record available.
Inventors
- 👤 Friederich Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:08
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/228; Y; Y10; Y10S; Y10S8/00; Y10S8/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
PROCESS FOR THE DRAWING OF COLD DRAWABLE ORGANIC HIGH POLYMER STRANDS WHICH COMPRISES THE STEPS OF; (A) COLD DRAWING SUCH A STRAND; (B) PASSING THE STRAND THROUGH AN AQUEOUS WASHING BATH IN SUBSTANTIALLY UNTENSIONED CONDITION; (C) DRYING THE STRAND, AND (D) TENSIONING THE STRAND AT A TEMPERATURE ABOVE ABOUT 100* C. AND AT LEAST ABOUT 25* BELOW THE MELTING POINT THEREOF.
Claim 2
Dependent Claim
61 words
PROCESS FOR THE DRAWING OF COLD DRAWABLE ORGANIC HIGH POLYMER STRANDS WHICH COMPRISES THE STEPS OF; (A) COLD DRAWING SUCH A STRAND; (B) PASSING THE STRAND THROUGH AN AQUEOUS WASHING BATH IN SUBSTANTIALLY UNTENSIONED CONDITION; (C) DRYING THE STRAND, AND (D) TENSIONING THE STRAND AT A TEMPERATURE ABOVE ABOUT 100* C. AND AT LEAST ABOUT 25* BELOW THE MELTING POINT THEREOF.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |