Patent US3055855A successfully refreshed from Google Patents.
US3055855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for emulsion polymerization of butadiene-unsaturated carboxylic acid copolymers and product thereof
Assignee: 3M Co
•
Filing: 1959-03-02
•
Granted: 1962-09-25
•
Expires: 1979-03-02
Abstract
No abstract record available.
Inventors
- 👤 Harvey L Anderson
- 👤 Haroid T Wingfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:45
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A PROCESS FOR PRODUCING A STABLE LATEX CONSISTING ESSENTIALLY OF WATER AND A COPOLYMER OF FROM ABOUT 50 TO 97 PERCENT BY WEIGHT OF A MONOMERIC BUTADIEN AND FROM ABOUT 50 TO 3 PERCENT BY WEIGHT OF A MONOMERIC ALPHA-BETA-UNSATURATED CARBOXYLIC ACID REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
46 words
A PROCESS FOR PRODUCING A STABLE LATEX CONSISTING ESSENTIALLY OF WATER AND A COPOLYMER OF FROM ABOUT 50 TO 97 PERCENT BY WEIGHT OF A MONOMERIC BUTADIEN AND FROM ABOUT 50 TO 3 PERCENT BY WEIGHT OF A MONOMERIC ALPHA-BETA-UNSATURATED CARBOXYLIC ACID REPRESENTED BY THE FORMULA:
References Cited (Backward Citations)
US2416461A
Cited
US2444801A
Cited
US2615009A
Cited
US2694053A
Cited
US2706192A
Cited
US2822341A
Cited
US2952043A
Cited
US2959821A
Cited
US2802799A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |