Patent US3775918A successfully refreshed from Google Patents.
US3775918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Outdoor ground tile
Assignee: Individual
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Filing: 1972-10-30
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Granted: 1973-12-04
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Expires: 1992-10-30
Abstract
Abstract An outdoor ground tile having a load bearing portion with depending ground support walls about the periphery thereof and intersecting ribs underneath which reinforce and also provide ground support to the load bearing portion. Anchor pins depend from the underneath side and the ribs and anchors which have a press fit with both the anchor pins and ribs provide for anchoring the tile to a ground surface.
Inventors
- 👤 A Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:04
CPC Classifications
E; E01; E01C; E01C5/00; E01C5/20; E01C3/00; E01C3/006
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
233 words
An outdoor ground tile of plastic or the like for fixed placement on a ground surface comprising a load bearing portion of substantial area having a top side and an underneath side, a side wall or walls integral with and depending downwardly from and extending about the periphery of said load bearing portion for providing ground support to the periphery of said load bearing portion, a pair of elongated reinforcing ribs integral with and depending downwardly from said underneath side and joining at opposite ends with said side wall or walls and intersecting each other at an intermediate location for reinforcing and also providing ground support to said load bearing portion, an anchor pin integral with and depending downwardly from both said underneath side and each rib portion intermediate the intersection of said ribs and each rib end, said side or sides and said ribs and said anchor pins all tapering to smaller size in the same direction away from said underneath side, and a plurality of separate anchors corresponding to the number of anchor pins, each said anchor at an upper end having a tapered hole that press fits with said anchor pins and also having a cross-slot that press fits with said rib portions, each said anchor at a lower end having a pointed tip for readily penetrating the ground surface to provide anchoring of the tile to the ground surface.
Claim 2
Dependent Claim
233 words
An outdoor ground tile of plastic or the like for fixed placement on a ground surface comprising a load bearing portion of substantial area having a top side and an underneath side, a side wall or walls integral with and depending downwardly from and extending about the periphery of said load bearing portion for providing ground support to the periphery of said load bearing portion, a pair of elongated reinforcing ribs integral with and depending downwardly from said underneath side and joining at opposite ends with said side wall or walls and intersecting each other at an intermediate location for reinforcing and also providing ground support to said load bearing portion, an anchor pin integral with and depending downwardly from both said underneath side and each rib portion intermediate the intersection of said ribs and each rib end, said side or sides and said ribs and said anchor pins all tapering to smaller size in the same direction away from said underneath side, and a plurality of separate anchors corresponding to the number of anchor pins, each said anchor at an upper end having a tapered hole that press fits with said anchor pins and also having a cross-slot that press fits with said rib portions, each said anchor at a lower end having a pointed tip for readily penetrating the ground surface to provide anchoring of the tile to the ground surface.
Claim 3
Dependent Claim
32 words
The tile set forth in claim 1 and said anchors having a shoulder substantially below both said Ribs and said side wall or walls that will penetrate substantially below the ground surface.
Claim 4
Dependent Claim
50 words
The tile set forth in claim 1 and a plurality of ground support-anchor legs integral with and depending downwardly from said underneath side in areas between said ribs and said wall or walls for providing ground support to said load bearing portion and also for pinning to the ground surface.
Claim 5
Dependent Claim
31 words
The tile set forth in claim 3 and said wall or walls, said ribs and said legs all having the same height and said anchor pins having a substantially greater height.
Claim 6
Dependent Claim
25 words
The tile set forth in claim 3 and said load bearing portion, said side wall or walls and said ribs all having the same thickness.
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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |