US2874151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric emulsifying agents and their derivatives
Assignee: Individual
•
Filing: 1955-06-28
•
Granted: 1959-02-17
•
Expires: 1975-06-28
Abstract
No abstract record available.
Inventors
- 👤 Avrom I Medalia
- 👤 Harold H Freedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:33
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/44
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
10 words
A WATER SOLUBLE POLYMER WHOSE REPEATING UNITS ARE OF STRUCTURE
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) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |