Patent US2849345A successfully refreshed from Google Patents.
US2849345A
Expired / Lapsed
US
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Preliminary pressing of bent glass assemblies
Assignee: PPG Industries Inc
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Filing: 1952-08-27
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Granted: 1958-08-26
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Expires: 1972-08-27
Abstract
No abstract record available.
Inventors
- 👤 William G Smith
- 👤 Brook J Dennison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:40
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10807; B32B17/10816; B32B17/10825; B32B17/10862
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
101 words
APPARATUS FOR THE PRELIMINARY PRESSING OF BENT LAMINATED ASSEMBLIES COMPRISING TWO SHEETS OF GLASS AND AN INTERPOSED SHEET OF THERMOPLASTIC MATERIAL WHICH ARE TO BE BONDED TOGETHER INTO A UNITARY STRUCTURE BY THE ACTION OF HET AND PRESSURE, WHICH APPRATUS COMPRISES, IN COMBINATION, A SUPPORTING STRUCTURE, A BALANCED HOUSING PIVOTALLY MOUNTED ON A HORIZONTAL AXIS IN SAID SUPPORTING STRUCTURE AND HAVING A LIMITED RANGE OF OSCILLATORY MOVEMENT ABOUT ITS AXIS, A PAIR OF COOPERATING INFLATED NIPPER ROLLS MOUNTED HORIZONTALLY ONE ABOVE THE OTHER IN THE BALANCED HOUSING, MEANS FOR DRIVING THE ROLLS, AND A PRESSURE EQUILIZING CONNECTION BETWEEN THE INFLATED ROLLS.
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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) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |