Patent US2526728A successfully refreshed from Google Patents.
US2526728A
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Glass laminations and interlayers therefor
Assignee: EIDP Inc
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Filing: 1948-08-19
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Granted: 1950-10-24
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Expires: 1968-08-19
Abstract
No abstract record available.
Inventors
- 👤 Burk Robert Emmett
- 👤 Stamatoff Gelu Stoeff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:04
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/1055; B32B17/10761; B32B17/10009; B32B17/10018; B32B17/10036; B32B2250/00; B32B2250/02; B32B2250/03; Y; Y10; Y10S; Y10S220/00; Y10S220/11; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/269
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
LAMINATED ARTICLE COMPRISING A GLASS SHEET, A SHEET COMPRISING A POLYVINYL BUTYRAL RESIN HAVING A HYDROXYL CONTENT OF 17%-20%, AND A PLASTICIZER THEREFOR, AND AN ACCOMODATION LAYER INTERPOSED BETWEEN SAID SHEETS, SAID ACCOMMODATION LAYUER COMPRISING A POLYVINAL BUTYRAL RESIN HAVING A HYDROXYL CONTENT OF 10%-13.5%, AND A PLASTICIZER THEREFOR.
Claim 2
Dependent Claim
49 words
LAMINATED ARTICLE COMPRISING A GLASS SHEET, A SHEET COMPRISING A POLYVINYL BUTYRAL RESIN HAVING A HYDROXYL CONTENT OF 17%-20%, AND A PLASTICIZER THEREFOR, AND AN ACCOMODATION LAYER INTERPOSED BETWEEN SAID SHEETS, SAID ACCOMMODATION LAYUER COMPRISING A POLYVINAL BUTYRAL RESIN HAVING A HYDROXYL CONTENT OF 10%-13.5%, AND A PLASTICIZER THEREFOR.
References Cited (Backward Citations)
GB461201A
Cited
US2184876A
Cited
US2113767A
Cited
US2176997A
Cited
US2200969A
Cited
US2258991A
Cited
US2124315A
Cited
US2274706A
Cited
US2318959A
Cited
US2400957A
Cited
US2453308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-23 | 1954-04-24 | 1954-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-23 | 1958-04-24 | 1958-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-23 | 1962-04-24 | 1962-10-24 | $7700.00 | Window Closed / Lapsed |