Patent US3293339A successfully refreshed from Google Patents.
US3293339A
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Method of drawing and dyeing articles of polypropylene
Assignee: EIDP Inc
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Filing: 1963-03-28
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Granted: 1966-12-20
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Expires: 1983-03-28
Abstract
No abstract record available.
Inventors
- 👤 Gates David Shuff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:30
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/223; D01; D01F; D01F6/00; D01F6/02; D01F6/04; D01F6/06; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/928
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A METHOD COMPRISING DRAWING A SHAPED ARTICLE OF POLYPROPYLENE HAVING GAMMA ORIENTATION AND AN ORIENTATION ANGLE OF 10* AND 45* AT A TEMPERATURE OF BETWEEN ABOUT 10* AND 80*C. IN CONTACT WITH A HOMOGENEOUS LIQUID DRQW BATH WHICH WETS THE POLYMER, HAS A SURFACE TENSION LESS THAN ABOUT 60 DYNES PER CENTIMETER AND CONTAINS A DYE SOLUBLE THEREIN, WHEREY THE DYE IS IMBIBED IN THE BODY OF THE ARTICLE.
Claim 2
Independent Claim
69 words
A METHOD COMPRISING DRAWING A SHAPED ARTICLE OF POLYPROPYLENE HAVING GAMMA ORIENTATION AND AN ORIENTATION ANGLE OF 10* AND 45* AT A TEMPERATURE OF BETWEEN ABOUT 10* AND 80*C. IN CONTACT WITH A HOMOGENEOUS LIQUID DRQW BATH WHICH WETS THE POLYMER, HAS A SURFACE TENSION LESS THAN ABOUT 60 DYNES PER CENTIMETER AND CONTAINS A DYE SOLUBLE THEREIN, WHEREY THE DYE IS IMBIBED IN THE BODY OF THE ARTICLE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |