US2534079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Granular polymers and process for their preparation
Assignee: EIDP Inc
•
Filing: 1948-03-19
•
Granted: 1950-12-12
•
Expires: 1968-03-19
Abstract
No abstract record available.
Inventors
- 👤 Daniel E Strain
- 👤 Peterson Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:17
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/12; C08J3/14; C08J2323/00; C08J2323/02; C08J2323/04; C08J2323/08; Y; Y10; Y10S; Y10S159/00; Y10S159/10; Y10S159/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
IN A PROCESS FOR ISOLATING IN GRANULAR FORM A SOLID MACROMOLECULAR, HYDROLYZED INTERPOLYMER HAVING THE EMPIRICAL FORMULA
Claim 2
Dependent Claim
17 words
IN A PROCESS FOR ISOLATING IN GRANULAR FORM A SOLID MACROMOLECULAR, HYDROLYZED INTERPOLYMER HAVING THE EMPIRICAL 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) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |