Patent US4349223A successfully refreshed from Google Patents.
US4349223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burglar proof bolt
Assignee: Individual
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Filing: 1980-07-25
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Granted: 1982-09-14
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Expires: 2000-07-25
Abstract
Abstract A sliding bolt for sliding across an inner side of a door of a home so as to more strongly resist against the door being forced open by an intruder; a two-directional electric motor moving the heavy bolt in both directions for sliding through U-shaped brackets mounted on the rear of the door and also on wall adjacent each side of the door.
Inventors
- 👤 Nancy R. Spector
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:17
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/003; E05B; E05B47/00; E05B47/0001; E05B2047/0014; E05B2047/0018; E05B2047/002; E05B47/0012; E05B49/00; G; G07; G07C; G07C9/00; G07C9/00174; G07C2009/00753; G07C2009/00769; Y; Y10; Y10T; Y10T292/00; Y10T292/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A burglar-proof bolt assembly, comprising in combination, a first bracket affixed on a wall inside a home at one side of an entry door, a second bracket affixed on a wall at an opposite side of said door, and a third bracket secured to an inner side of said door, said brackets being aligned, and a bolt stored in said first bracket being slidable through said second and third brackets so as to secure said door from an intruder outside; an electric motor mounted on said wall to which said first bracket is affixed said motor being connected to an electric power of said home, a gear driven by said motor engaging a toothed rack along said bar; and a remote control unit carried by a resident when outside of said home, said remote control unit including means to activate said motor for sliding said bolt and lock or unlock said door.
Claim 2
Dependent Claim
152 words
A burglar-proof bolt assembly, comprising in combination, a first bracket affixed on a wall inside a home at one side of an entry door, a second bracket affixed on a wall at an opposite side of said door, and a third bracket secured to an inner side of said door, said brackets being aligned, and a bolt stored in said first bracket being slidable through said second and third brackets so as to secure said door from an intruder outside; an electric motor mounted on said wall to which said first bracket is affixed said motor being connected to an electric power of said home, a gear driven by said motor engaging a toothed rack along said bar; and a remote control unit carried by a resident when outside of said home, said remote control unit including means to activate said motor for sliding said bolt and lock or unlock said door.
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) | 1985-09-13 | 1986-03-15 | 1986-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-13 | 1990-03-15 | 1990-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-13 | 1994-03-15 | 1994-09-14 | $7700.00 | Window Closed / Lapsed |