US3228919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the suspension of vinyl monomers to produce porous and uniform granular polymers
Assignee: Edison SpA
•
Filing: 1961-12-27
•
Granted: 1966-01-11
•
Expires: 1981-12-27
Abstract
No abstract record available.
Inventors
- 👤 Gatta Giorgio
- 👤 Benetta Gianni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:52
CPC Classifications
C; C08; C08F; C08F14/00; C08F14/02; C08F14/04; C08F14/06; C08F291/00; Y; Y10; Y10S; Y10S526/00; Y10S526/909; Y10S526/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
IN A PROCESS FOR THE SUSPENSION POLYMERIZATION OF AT LEAST ONE POLYMERIZABLE VINYL MONOMER HAVING SUBSTANTIALLY THE FORMULA
Claim 2
Dependent Claim
18 words
IN A PROCESS FOR THE SUSPENSION POLYMERIZATION OF AT LEAST ONE POLYMERIZABLE VINYL MONOMER HAVING SUBSTANTIALLY THE FORMULA
References Cited (Backward Citations)
US3049520A
Cited
US3055876A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |