Patent US3588020A successfully refreshed from Google Patents.
US3588020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand rail bracket assembly
Assignee: Amerock Corp
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Filing: 1969-04-16
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Granted: 1971-06-28
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Expires: 1989-04-16
Abstract
Abstract FOR SUPPORTING AN INCLINED HAND RAIL ON A WALL ALONGSIDE A FLIGHT OF STAIRS, A BRACKET ASSEMBLY INCLUDES A STATIONARY BRACKET ANCHORED TO THE WALL AND MOUNTING A TILTABLE RAIL SUPPORT WHICH MAY BE TURNED ON THE BRACKET TO AN ANGULAR POSITION CORRESPONDING TO THE INCLINATION OF THE RAIL. THE BRACKET AND SUPPORT ARE FORMED WITH A COMPLEMENTARY KEY AND KEYWAY ENABLING ASSEMBLY OF THE SUPPORT TO BE BRACKET WITH A SIMPLE SLIP-ON MOTION AND THEREAFTER ACTING TO HOLD THE TWO AGAINST SEPARATION WHILE STILL LEAVING THE SUPPORT FREE TO TURN ON THE BRACKET.
Inventors
- 👤 John I Newcomer
- 👤 Martin R Lambertz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:46
CPC Classifications
E; E04; E04F; E04F11/00; E04F11/18; E04F11/1802; E04F11/1804
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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |