Patent US2580230A successfully refreshed from Google Patents.
US2580230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved polyvinyl acetate emulsion capable of depositing water-resistant films and bonds
Assignee: LE Page's Inc
•
Filing: 1950-03-24
•
Granted: 1951-12-25
•
Expires: 1970-03-24
Abstract
No abstract record available.
Inventors
- 👤 Walter G Kunze
- 👤 Evans Raymond Bertram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:23
CPC Classifications
C; C09; C09D; C09D131/00; C09D131/02; C09D131/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
22 words
A COMPOSITION COMPRISING A TACKY AQUEOUS EMULSION OF POLYVINYL ACETATE, AND FROM 1/2 TO 25% BY WEIGHT OF SAID ACETATE OF BENTONITE.
Claim 2
Dependent Claim
22 words
A COMPOSITION COMPRISING A TACKY AQUEOUS EMULSION OF POLYVINYL ACETATE, AND FROM 1/2 TO 25% BY WEIGHT OF SAID ACETATE OF BENTONITE.
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) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |