US2556295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of drawing formed structures of synthetic linear polyesters
Assignee: EIDP Inc
•
Filing: 1947-07-23
•
Granted: 1951-06-12
•
Expires: 1967-07-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Anderson Pace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:03
CPC Classifications
D; D02; D02J; D02J1/00; D02J1/22; D02J1/228; B; B29; B29C; B29C55/00; B29C55/02; B29C55/04; B29C55/06; B29C55/065; D01; D01F; D01F6/00; D01F6/58; D01F6/62; B29K; B29K2067/00; Y; Y10; Y10S; Y10S8/00; Y10S8/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
THE PROCESS OF DRAWING SHAPED STRUCTURES OF SYNTHETIC LINEAR POLYESTERS WHICH COMPRISES FIRST DRAWING THE SHAPED STRUCTURE OF A SUBSTANTIALLY AMORPHOUS SYNTHETIC LINEAR POLYESTER AT A TEMPERATURE BETWEEN THE SECOND ORDER TRANSITION TEMPERATURE FOR SAID POLYESTER AND THE APPARENT MINIMUM CRYSTALLIZATION TEMPERATURE FOR SAID POLYESTER DISCONTINUING THE DRAW WHILE THE POLYESTER IS IN THE AMORPHOUS STATE, HEATING THE STRUCTURE SO DRAWN TO A TEMPERATURE ABOVE SAID APPARENT MINIMUM CRYSTALIZATION TEMPERATURE AND FURTHER DRAWING SAID STRUCTURE AT SAID TEMPERATURE ABOVE SAID APPARETN MINIMUM CRYSTALLIZATION TEMPERATURE.
Claim 2
Dependent Claim
84 words
THE PROCESS OF DRAWING SHAPED STRUCTURES OF SYNTHETIC LINEAR POLYESTERS WHICH COMPRISES FIRST DRAWING THE SHAPED STRUCTURE OF A SUBSTANTIALLY AMORPHOUS SYNTHETIC LINEAR POLYESTER AT A TEMPERATURE BETWEEN THE SECOND ORDER TRANSITION TEMPERATURE FOR SAID POLYESTER AND THE APPARENT MINIMUM CRYSTALLIZATION TEMPERATURE FOR SAID POLYESTER DISCONTINUING THE DRAW WHILE THE POLYESTER IS IN THE AMORPHOUS STATE, HEATING THE STRUCTURE SO DRAWN TO A TEMPERATURE ABOVE SAID APPARENT MINIMUM CRYSTALIZATION TEMPERATURE AND FURTHER DRAWING SAID STRUCTURE AT SAID TEMPERATURE ABOVE SAID APPARETN MINIMUM CRYSTALLIZATION TEMPERATURE.
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) | 1954-06-11 | 1954-12-11 | 1955-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-11 | 1958-12-11 | 1959-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-11 | 1962-12-11 | 1963-06-12 | $7700.00 | Window Closed / Lapsed |