Patent US3915434A successfully refreshed from Google Patents.
US3915434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cap for a stairstep railing post
Assignee: Individual
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Filing: 1975-01-02
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Granted: 1975-10-28
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Expires: 1995-01-02
Abstract
Abstract A cap or cover with a decorative appearance is provided for the anchor bolt heads or nuts and base plates at the bottom of stairstep railing posts which are secured to the steps and platform of the step structure to which the railing is affixed. The cap includes separable complementary shell portions so that it can be placed in covering relationship to the bolt heads and base plate after the railing is secured in place and without any disassembly of the railing structure.
Inventors
- 👤 Glenn F Lister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:49
CPC Classifications
E; E04; E04F; E04F11/00; E04F11/18; E04F11/181; E04F11/1812; E01; E01F; E01F15/00; E01F15/02; E01F15/04; E01F15/0461; E01F15/0469; E04F11/1814; E04H; E04H12/00; E04H12/22; E04H12/2207; E04H12/2215
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
180 words
A decorative cap for use in conjunction with a railing of the class used on a concrete step structure and including railing posts having means at one end for a bolt anchor attachment to the step structure, said cap comprising: A pair of complementary shell members, identical in structure, with the two shell members in a reversed position relationship to form a complete cap, each shell member including a top, opposed ends, a closed side and having an open side, said top being provided with a notch defining an outline complementary to that of a portion of the railing post whereby in the confronting relationship of said shell members, said open sides are in abutting contact with each other and said post is completely embraced by the perimeter of said notches, said shell members being provided at one point interiorly with a channel like recess and having a projected prong in spaced relationship to said recess, whereby in the confronting relationship to said shell members the prong on one component is frictionally received in the recess of the other component.
Claim 2
Dependent Claim
180 words
A decorative cap for use in conjunction with a railing of the class used on a concrete step structure and including railing posts having means at one end for a bolt anchor attachment to the step structure, said cap comprising: A pair of complementary shell members, identical in structure, with the two shell members in a reversed position relationship to form a complete cap, each shell member including a top, opposed ends, a closed side and having an open side, said top being provided with a notch defining an outline complementary to that of a portion of the railing post whereby in the confronting relationship of said shell members, said open sides are in abutting contact with each other and said post is completely embraced by the perimeter of said notches, said shell members being provided at one point interiorly with a channel like recess and having a projected prong in spaced relationship to said recess, whereby in the confronting relationship to said shell members the prong on one component is frictionally received in the recess of the other component.
Claim 3
Dependent Claim
31 words
A cap as defined in claim 1, wherein the top, closed sides and ends of said shell members completely cover and embrace the bolt anchor attachment means on said railing posts.
Claim 4
Dependent Claim
21 words
A cap as defined in claim 1 wherein the said shell members are of a light weight but durable plastic material.
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) | 1978-10-27 | 1979-04-28 | 1979-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-27 | 1983-04-28 | 1983-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-27 | 1987-04-28 | 1987-10-28 | $7700.00 | Window Closed / Lapsed |