US3781184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safe bi-modal windshields
Assignee: Corning Glass Works
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Filing: 1971-05-24
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Granted: 1973-12-25
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Expires: 1991-05-24
Abstract
Abstract This invention relates to motor vehicle windshields having a glass outer layer and a soft plastic inner layer which is protected from abrasion by a thin film of a low-permeability polymer such as polyvinyl fluoride. Such windshields provide nearly ideal protection from head and face lacerations in collisions at speeds up to about 36 m.p.h., and additionally provide excellent concussion protection.
Inventors
- 👤 J Domicone
- 👤 T Kozlowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:22
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/30; B32B27/306; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10018; B32B17/10165; B32B17/1033; B32B17/1055; B32B17/10761; B32B2329/00; B32B2329/06; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/31504; Y10T428/3154; Y10T428/31551; Y10T428/31627; Y10T428/3163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |