US3539442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated articles comprising polycarbonate sheet bonded to layer of plasticized polyvinyl acetal
Assignee: Monsanto Co
•
Filing: 1967-12-15
•
Granted: 1970-11-10
•
Expires: 1987-12-15
Abstract
No abstract record available.
Inventors
- 👤 Francis T Buckley
- 👤 Raymond F Riek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:11
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10036; B32B17/1055; B32B17/10761; B32B17/10807; B32B17/10981; B32B27/00; C; C08; C08K; C08K5/00; C08K5/36; C08K5/43; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31551; Y10T428/31627; Y10T428/3163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2056796A
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US2200969A
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US2464826A
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US3178334A
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US3388034A
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US3406086A
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US3449184A
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US3468749A
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US3437553A
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US3437552A
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US3458388A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |