US3424646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated safety glass and process for making same
Assignee: Hoechst AG
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Filing: 1965-08-13
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Granted: 1969-01-28
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Expires: 1985-08-13
Abstract
No abstract record available.
Inventors
- 👤 Fritz Winkler
- 👤 Franz Pohl
- 👤 Hermann Stark
- 👤 Helmut Kesseler
- 👤 Werner Grundmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:43
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0008; B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/1055; B32B17/10688; B32B17/10761; C08L; C08L29/00; C08L29/14; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31645
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) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |