US2535533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of polyallyl derivatives
Assignee: British Resin Products Ltd
•
Filing: 1947-07-21
•
Granted: 1950-12-26
•
Expires: 1967-07-21
Abstract
No abstract record available.
Inventors
- 👤 Evans Edward Michael
- 👤 Hookway Harry Thurston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:53
CPC Classifications
C; C08; C08F; C08F28/00; C08F28/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
8 words
POLY(ALLYL AND B-HYDROCARBON-SUBSTITUTED ALLYL DERIVATIVES OF 1,3,5-TRIMETHYLENE TRISULPHONE).
References Cited (Backward Citations)
US2418991A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-25 | 1954-06-26 | 1954-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-25 | 1958-06-26 | 1958-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-25 | 1962-06-26 | 1962-12-26 | $7700.00 | Window Closed / Lapsed |