Patent US3202494A successfully refreshed from Google Patents.
US3202494A
Expired / Lapsed
US
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Method and apparatus for producing multiple sheet glazing units
Assignee: Libbey Owens Ford Glass Co
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Filing: 1960-04-12
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Granted: 1965-08-24
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Expires: 1980-04-12
Abstract
No abstract record available.
Inventors
- 👤 John A Woods
- 👤 Co Ohio Citizens Trust
- 👤 Alfred E Badger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:31
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/20; C03B23/24; C03B23/245; E; E06; E06B; E06B3/00; E06B3/66; E06B3/6608
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A METHOD OF PRODUCING MULTIPLE SHEET GLAZING UNITS, WHICH COMPRISES SUPPORTING THE MARGINAL EDGE PORTIONS OF ONE SHEET OF GLASS IN SPACE RELATION ABOVE THOSE OF ANOTHER GLASS SHEET, MOVING SAID MARGINAL EDGE PORTIONS OF THE SHEETS AS A UNIT PAST A HEAT SOURCE WHICH HEATS SAID MARGINAL EDGE PORTIONS AND CAUSES THEM TO BE FUSED TO ONE ANOTHER, AND PROGRESSIVELY REMOVING A PORTION OF THE SUPPORT FOR THE UPPER SHEET NEAREST THE HEAT SOURCE PRIOR TO MOVEMENT OF THE PREVIOUSLY SUPPORTED MARGINAL EDGE PROTIONS OF SAID SHEETS PAST SAID HEAT SOURCE WHILE RETAINING SUPPORT FOR THE SHEET ALONG AREAS FARTHER REMOVED FROM SAID HEAT SOURCE UNTIL THE MARGINAL EDGE PORTIONS ARE SEALED SUBSTANTIALLY ALONG THEIR ENTIRE LENGTH.
Claim 2
Independent Claim
118 words
A METHOD OF PRODUCING MULTIPLE SHEET GLAZING UNITS, WHICH COMPRISES SUPPORTING THE MARGINAL EDGE PORTIONS OF ONE SHEET OF GLASS IN SPACE RELATION ABOVE THOSE OF ANOTHER GLASS SHEET, MOVING SAID MARGINAL EDGE PORTIONS OF THE SHEETS AS A UNIT PAST A HEAT SOURCE WHICH HEATS SAID MARGINAL EDGE PORTIONS AND CAUSES THEM TO BE FUSED TO ONE ANOTHER, AND PROGRESSIVELY REMOVING A PORTION OF THE SUPPORT FOR THE UPPER SHEET NEAREST THE HEAT SOURCE PRIOR TO MOVEMENT OF THE PREVIOUSLY SUPPORTED MARGINAL EDGE PROTIONS OF SAID SHEETS PAST SAID HEAT SOURCE WHILE RETAINING SUPPORT FOR THE SHEET ALONG AREAS FARTHER REMOVED FROM SAID HEAT SOURCE UNTIL THE MARGINAL EDGE PORTIONS ARE SEALED SUBSTANTIALLY ALONG THEIR ENTIRE LENGTH.
References Cited (Backward Citations)
US1448351A
Cited
US2194755A
Cited
US2389360A
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US2624979A
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US2671987A
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US2761249A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |