US3282722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of flame treating polyvinyl butyral and the product thereof
Assignee: EIDP Inc
•
Filing: 1963-07-22
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Granted: 1966-11-01
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Expires: 1983-07-22
Abstract
No abstract record available.
Inventors
- 👤 Hailstone Robert Burleigh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:57
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/08; B29C59/10; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10036; B32B17/10165; B32B17/10339; B32B17/1055; B32B17/10688; B32B17/10761; B32B17/10807; B32B17/10981; B32B2367/00; B32B27/00; B32B27/36; C; C08; C08J; C08J5/00; C08J5/18; C08J7/00; C08J7/04; C08J7/06; B29K; B29K2029/00; C08J2329/00; C08J2329/14; Y; Y10; Y10T; Y10T428/00; Y10T428/31; Y10T428/31504; Y10T428/31551; Y10T428/31616; Y10T428/31645
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
35 words
IN A PROCESS FOR THE PREPARATION OF PLASTICIZED POLYVINYL BUTYRAL SHEETING SUITABLE FOR USE IN THE PREPARATION OF LAMINATED SAFETY GLASS, THE STEP WHICH COMPRISES FLAMING AT LEAST ONE SURFACE OF A PLASTICIZED BUTYRAL SHEETING.
Claim 2
Dependent Claim
35 words
IN A PROCESS FOR THE PREPARATION OF PLASTICIZED POLYVINYL BUTYRAL SHEETING SUITABLE FOR USE IN THE PREPARATION OF LAMINATED SAFETY GLASS, THE STEP WHICH COMPRISES FLAMING AT LEAST ONE SURFACE OF A PLASTICIZED BUTYRAL SHEETING.
Claim 3
Dependent Claim
34 words
THE PROCESS OF CLAIM 4 IN WHICH THE PLASTICIZED POLYVINYL BUTYRAL SHEETING IS COATED ON ITS SURFACES WITH SODIUM BICARBONATE POWDER WHICH COMPRISES LESS THAN ABOUT 15 PERCENT BY WEIGHT OF THE POWDERED SHEETING.
References Cited (Backward Citations)
GB828381A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |