US2682520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified polyvinyl acetal resin composition
Assignee: Monsanto Chemicals Ltd
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Filing: 1952-10-29
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Granted: 1954-06-29
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Expires: 1972-10-29
Abstract
No abstract record available.
Inventors
- 👤 Bump Charles Kilbourne
- 👤 Frank J Quinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:47
CPC Classifications
C; C09; C09D; C09D129/00; C09D129/14; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31688
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
29 words
A COMPOSITION OF MATTER COMPRISING A POLYVINYL ACETAL RESIN AND 0.2 TO 3 PARTS PER 100 PARTS OF SAID RESIN OF A DIVALENT HEAVY METAL SALT OF FLUORBORIC ACID.
Claim 2
Dependent Claim
29 words
A COMPOSITION OF MATTER COMPRISING A POLYVINYL ACETAL RESIN AND 0.2 TO 3 PARTS PER 100 PARTS OF SAID RESIN OF A DIVALENT HEAVY METAL SALT OF FLUORBORIC ACID.
Claim 3
Dependent Claim
32 words
A COMPOSITION OF MATTER COMPRISING A MIXTURE OF XYLENE AND BUTANOL HAVING DISSOLVED THEREIN A POLYVINYL BUTYRAL RESIN AND 0.2 TO 3 PARTS OF TIN FLUORBORATE PER 100 PARTS OF SAID RESIN.
Claim 4
Dependent Claim
32 words
A COMPOSITION OF MATTER COMPRISING A MIXTURE OF XYLENE AND BUTANOL HAVING DISSOLVED THEREIN A POLYVINYL BUTYRAL RESIN AND 0.2 TO 3 PARTS OF TIN FLUORBORATE PER 100 PARTS OF SAID RESIN.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-28 | 1957-12-28 | 1958-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-28 | 1961-12-28 | 1962-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-28 | 1965-12-28 | 1966-06-29 | $7700.00 | Window Closed / Lapsed |