Patent US2736890A successfully refreshed from Google Patents.
US3522142A
Expired / Lapsed
US
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Glass laminated with silicon-containing polyurethane
Assignee: PPG Industries Inc
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Filing: 1965-02-24
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Granted: 1970-07-28
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Expires: 1985-02-24
Abstract
No abstract record available.
Inventors
- 👤 Marco Wismer
- 👤 Vernon G Ammons
- 👤 Gerald W Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:11
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/1055; B32B17/1077; B32B17/10807; B32B17/10899; B32B17/10908; B32B17/10917; C; C03; C03C; C03C17/00; C03C17/28; C03C17/32; C03C17/322; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/38; C08G18/3893; C08G18/40; C08G18/61; C09; C09J; C09J175/00; B32B38/00; B32B2038/0052; B32B2038/0076; B32B2305/00; B32B2305/72; B32B2605/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31598; Y10T428/31601; Y10T428/31609; Y10T428/31612
Claims Analysis
Total Claims: 0
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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) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |