Patent US2575444A successfully refreshed from Google Patents.
US2575444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of plasticized resin compositions
Assignee: Distillers Co Yeast Ltd
•
Filing: 1946-10-29
•
Granted: 1951-11-20
•
Expires: 1966-10-29
Abstract
No abstract record available.
Inventors
- 👤 Faulkner Donald
- 👤 Stanley Herbert Muggleton
- 👤 Staudinger Johann Josef Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:00
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A COMPOSITION OF MATTER COMPRISING A POLYMER OF THE CLASS CONSISTING OF POLYMERS OF COMPOUNDS CONTAINING A SINGLE GROUP
Claim 2
Dependent Claim
19 words
A COMPOSITION OF MATTER COMPRISING A POLYMER OF THE CLASS CONSISTING OF POLYMERS OF COMPOUNDS CONTAINING A SINGLE GROUP
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) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |