Patent US4290636A successfully refreshed from Google Patents.
US4290636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Security device
Assignee: Individual
•
Filing: 1980-01-29
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Granted: 1981-09-22
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Expires: 2000-01-29
Abstract
Abstract A security device for use on inwardly opening doors, having a holding plate mountable beneath the knob of the door on which a bar is mounted, and a foot member, pivotally mounted on the lower end of the bar, is adapted to move inwardly a preselected distance from the door, and will direct a force upwardly against the door casing when an inward pressure is applied to the door.
Inventors
- 👤 Richard J. Steele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:03
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/003; E05C19/004; Y; Y10; Y10T; Y10T292/00; Y10T292/65
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
In a security device, plates mounted on the door, an inwardly extending pivotally mounted bar mounted at one end on said plates, a base member pivotally mounted on the other end of said bar, means for maintaining said base member at a preselected distance inwardly from said door, said plates comprising an outside plate and an inside plate, the outside plate having inwardly extending, inwardly threaded sockets and the inside plate having ports to receive mounting screws and an enlarged port to receive an eye-bolt to which the said bar is mounted.
Claim 2
Dependent Claim
92 words
In a security device, plates mounted on the door, an inwardly extending pivotally mounted bar mounted at one end on said plates, a base member pivotally mounted on the other end of said bar, means for maintaining said base member at a preselected distance inwardly from said door, said plates comprising an outside plate and an inside plate, the outside plate having inwardly extending, inwardly threaded sockets and the inside plate having ports to receive mounting screws and an enlarged port to receive an eye-bolt to which the said bar is mounted.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-09-21 | 1985-03-23 | 1985-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-21 | 1989-03-23 | 1989-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-21 | 1993-03-23 | 1993-09-22 | $7700.00 | Window Closed / Lapsed |