Patent US3049711A successfully refreshed from Google Patents.
US2962470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linear polyester-polyurethane product and process of preparing same
Assignee: EIDP Inc
•
Filing: 1958-01-09
•
Granted: 1960-11-29
•
Expires: 1978-01-09
Abstract
No abstract record available.
Inventors
- 👤 Shee L Jung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:42
CPC Classifications
C; C08; C08L; C08L75/00; Y; Y10; Y10S; Y10S264/00; Y10S264/77
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
16 words
A SYNTHETIC SUBSTANTIALLY LINEAR SEGMENTED POLYESTERURETHANE COPOLYMER CONSISTING ESSENTIALLY OF INTRALINEAR STRUCTURAL UNITS HAVING THE FORMULA
Claim 2
Dependent Claim
16 words
A SYNTHETIC SUBSTANTIALLY LINEAR SEGMENTED POLYESTERURETHANE COPOLYMER CONSISTING ESSENTIALLY OF INTRALINEAR STRUCTURAL UNITS HAVING THE FORMULA
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) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |