US3552158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flush latch
Assignee: Individual
•
Filing: 1969-05-23
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Granted: 1971-01-05
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Expires: 1989-05-23
Abstract
Abstract A FLUSH LATCH IS PROVIDED FOR A DOOR WHICH CAN BE OPENED FROM EITHER SIDE BY A SIMPLE SCOOPING MOVEMENT OF THE FINGERS. THE FLUSH LATCH ALLOWS DOORS TO BE STACKED FLAT WITH THE LATCH INSTALLED, LENDING ITSELF TO PREFABRICATION. IN ACCORDANCE WITH ONE EMBODIMENT OF THE INVENTION A KEY LOCK IS ALSO PROVIDED WHILE IN ACCORDANCE WITH ANOTHER EMBODIMENT A ONE-WAY LEVER LOCK IS PROVIDED SO THAT THE DOOR CAN BE LOCKED FROM ONE SIDE BY A SIMPLE MOVEMENT OF THE LEVER.
Inventors
- 👤 Johan Van Lengen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:03
CPC Classifications
E; E05; E05C; E05C1/00; E05C1/08; E05C1/12; E05C1/16; E05C1/166; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0972; Y10T292/1014; Y10T292/1022; Y10T292/1031; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/5394; Y10T70/5465; Y10T70/5487; Y10T70/5611; Y10T70/5757; Y10T70/5761
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |