US2853465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyvinyl halide resin compositions containing nu-vinylpyrrolidone polymers and process of sizing glass therewith
Assignee: GAF Chemicals Corp
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Filing: 1955-06-16
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Granted: 1958-09-23
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Expires: 1975-06-16
Abstract
No abstract record available.
Inventors
- 👤 Werner Jesse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:26
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C03; C03C; C03C17/00; C03C17/28; C03C17/32; C08L27/04; C08L27/06; C08L39/00; C08L39/04; C08L39/06; Y; Y10; Y10S; Y10S260/00; Y10S260/41; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31645; Y10T428/31649
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A COMPOSITION OF MATTER ADAPTABLE FOR SIZING GLASS SURFACES COMPRISING A MIXTURE CONTAINING 80-97% OF A HOMOPOLYMER OF A VINYL HALIDE AND 3-20% OF A POLYMER OF N-VINYL PYRROLIDONE HAVING THE FOLLOWING GENERAL FORMULA
Claim 2
Dependent Claim
34 words
A COMPOSITION OF MATTER ADAPTABLE FOR SIZING GLASS SURFACES COMPRISING A MIXTURE CONTAINING 80-97% OF A HOMOPOLYMER OF A VINYL HALIDE AND 3-20% OF A POLYMER OF N-VINYL PYRROLIDONE HAVING THE FOLLOWING GENERAL FORMULA
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) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |