US3759771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making double glazing unit
Assignee: Individual
•
Filing: 1971-04-26
•
Granted: 1973-09-18
•
Expires: 1991-04-26
Abstract
Abstract METHOD OF MAKING DOUBLE GLAZING UNIT IN WHICH A SPACER IS DISPOSED BETWEEN TWO PANES OF GLASS LEAVING A CHANNEL BETWEEN AN OUTER FACE OF THE SPACER AND MARGINAL PORTIONS OF THE PANES, RESINOUS MATERIAL IS APPLIED IN HOT MOLTEN CONDITION TO SEAL THE JOINTS BETWEEN THE SPACER AND PANES TO ADHERE TO THE PANES AND EXTEND FROM ONE PANE TO THE OTHER AND THE RESINOUS MATERIAL IS COOLED TO SOLIDIFY IT TO HOLD THE PANES STRONGLY TOGETHER IN SPACED, SEALED RELATIONSHIP.
Inventors
- 👤 W Battersby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:32
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/66; E06B3/673; E06B3/67339; E06B3/67343; E06B3/663; E06B3/66309; E06B3/66342; E06B3/67347
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) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |