US3249479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressing glass-plastic sandwiches
Assignee: Libbey Owens Ford Glass Co
•
Filing: 1957-10-21
•
Granted: 1966-05-03
•
Expires: 1977-10-21
Abstract
No abstract record available.
Inventors
- 👤 James H Boicey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:44
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10807; B32B17/10816; B32B17/10825; B32B17/10834; B32B17/10009; B32B17/10036; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/231; Y10T428/24; Y10T428/2419; Y10T428/24198
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A METHOD OF PRESSING TOGETHER THE LAMINAE OF GLASS PLASTIC SANDWICHES WHICH COMPRISES THE STEPS OF COVERING THE MARGINS AND EDGE PORTIONS OF SAID SANDWICHES, WITHDRAWING AIR FROM BETWEEN SAID SANDWICHES AT SAID COVERED EDGES TO PERMIT ATMOSPHERIC PRESSURE TO PRESS THE LAMINAE OF SAID SANDWICHES TOGETHER, UNCOVERING SAID MARGINS AND EDGE PORTIONS OF THE SANDWICHES, APPLYING TO THE EDGES OF SAID SANDWICHES A MATERIAL THAT WILL CAUSE THE PLASTIC LAMINA OF THE SANDWICH TO SWELL, AND FINALLY EXPOSING SAID SANDWICH WHILE UNCOVERED TO THE ACTION OF A HEATED LIQUID UNDER PRESSURE.
Claim 2
Independent Claim
92 words
A METHOD OF PRESSING TOGETHER THE LAMINAE OF GLASS PLASTIC SANDWICHES WHICH COMPRISES THE STEPS OF COVERING THE MARGINS AND EDGE PORTIONS OF SAID SANDWICHES, WITHDRAWING AIR FROM BETWEEN SAID SANDWICHES AT SAID COVERED EDGES TO PERMIT ATMOSPHERIC PRESSURE TO PRESS THE LAMINAE OF SAID SANDWICHES TOGETHER, UNCOVERING SAID MARGINS AND EDGE PORTIONS OF THE SANDWICHES, APPLYING TO THE EDGES OF SAID SANDWICHES A MATERIAL THAT WILL CAUSE THE PLASTIC LAMINA OF THE SANDWICH TO SWELL, AND FINALLY EXPOSING SAID SANDWICH WHILE UNCOVERED TO THE ACTION OF A HEATED LIQUID UNDER PRESSURE.
References Cited (Backward Citations)
US504890A
Cited
US1870284A
Cited
US1732022A
Cited
US1734379A
Cited
US2430873A
Cited
US2492566A
Cited
US2700632A
Cited
US2700196A
Cited
US2673822A
Cited
US2948645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |