US3752728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for molding sheets of glassreinforced plastics
Assignee: Individual
•
Filing: 1970-04-17
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Granted: 1973-08-14
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Expires: 1990-04-17
Abstract
Abstract A device for molding sheets of glass-reinforced plastics having a bridge truss movable in the direction transverse to the truss span and a carriage moving along the truss. Secured on the carriage is a molding head with means for laying, and densifying the sheets of a glass reinforcing material and for impregnating them with binders. The device has with means for providing for a simultaneous movement of the bridge truss and carriage at speeds being in a predetermined ratio, while the molding head is secured on the carriage with the possibility of turning about a vertical axis and fixing in a required direction.
Inventors
- 👤 V Smirnov
- 👤 V Smirnova
- 👤 S Ivanov
- 👤 N Belyaev
- 👤 Y Epshtein
- 👤 S Ginzburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:20
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/30; B29C70/38; B29C70/386; B29C70/388; B29C70/54; B29C70/545; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1317; Y10T156/1343; Y10T156/1348; Y10T156/17; Y10T156/1788; Y10T156/1795
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) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |