US3669808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling apparatus for the rolling together of curved glass sheets with interposed plastics sheets to form a laminate
Assignee: GLASTEMP OF TOLEDO Inc PERRYBURG OH
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Filing: 1970-07-21
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Granted: 1972-06-13
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Expires: 1990-07-21
Abstract
Abstract Apparatus for rolling together superimposed curved sheets to form a curved laminate comprises a pivoted frame in which are mounted two opposed groups of pressure roller units. Each unit comprises rollers carried on a guide rod slidably and rotatably mounted in a hollow housing which contains a spring biassing the guide rod to one end of the housing. The housings of the pressure roller units are individually adjustable in position on the housing so that the apparatus can be set so that the combined roller gap defined between the opposed groups of pressure rollers, has any desired curvature.
Inventors
- 👤 Kurt Klotzbach
- 👤 Johann Herzog
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:37
CPC Classifications
B; B32; B32B; B32B1/00; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10807; B32B17/10816; B32B17/10825; B32B17/10862; B32B3/00; B32B3/02
Claims Analysis
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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) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |