US3555750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trolley rail bracket
Assignee: National Manufacturing Co
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Filing: 1968-06-19
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Granted: 1971-01-19
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Expires: 1988-06-19
Abstract
Abstract THE BRACKETS THAT SUPPORT THE TROLLEY RAILS FOR A SLIDING DOOR EACH INCLUDE A NARROW VERTICAL PLATE TO BE BOLTED TO A WALL. THE VERTICAL PLATE HAS A LEDGE INTEGRALLY FORMED WITH ITS BOTTOM EDGE AND BENT ORTHOGONALLY THEREFROM AND HAS A CROSS BRACE INTEGRALLY FORMED WITH A SIDE EDGE AND BENT OUTWARDLY AND ORTHOGONALLY THEREFROM. A HORIZONTAL PLATE IS FORMED INTEGRALLY WITH THE BOTTOM SIDE OF THE CROSS BRACE AND IS BENT UPWARD AND ORTHOGONAL THERETO TO REST UPON THE LEDGE OF THE VERTICAL PLATE. THE HORIZONTAL PLATE HAS A SLOT FOR THE MOUNTING OF A TRACK MEMBER BY BOLTS AND A DOWNWARDLY TURNED TAB AT ITS END, WHICH TAB INCLUDES AN APERTURE FOR FASTENING A FLASHING TO THE TAB.
Inventors
- 👤 George Banse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:26
CPC Classifications
E; E05; E05D; E05D15/00; E05D15/06; E05D15/0621; E05D15/0626; E05D15/0652; E05Y; E05Y2201/00; E05Y2201/60; E05Y2201/622; E05Y2201/684; E05Y2600/00; E05Y2600/60; E05Y2600/626
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |