Patent US3859768A successfully refreshed from Google Patents.
US3859768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prefabricated tennis court assembly
Assignee: FLEX A COURT Inc
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Filing: 1973-03-01
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Granted: 1975-01-14
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Expires: 1993-03-01
Abstract
Abstract Prefabricated court units and assembly, wherein each of the units is of a convenient size for transportation, handling and installation at a site for the tennis courts, whereby a plurality of said units may be assembled and a finished tennis court provided by inexperienced personnel with a minimum of special equipment.
Inventors
- 👤 Byron A Donzis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:56
CPC Classifications
E; E01; E01C; E01C13/00; E01C13/04; E01C13/045
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
124 words
A court assembly, comprising: a plurality of court units, each of which has a locking recess on each of its sides and ends, said plurality of court units being arranged in sets of three units side-by-side; and a locking member adapted to be disposed in each pair of adjacent locking recesses on said units for positioning said units with all of their upper surfaces in the same plane, and at least one of said locking members for each of said sets in the longitudinal locking recesses being of the same length as said recesses, and another of said locking members being positioned in one of said locking recesses and extending therebeyond for positioning in a fourth unit in another set of units aligned therewith.
Claim 2
Dependent Claim
124 words
A court assembly, comprising: a plurality of court units, each of which has a locking recess on each of its sides and ends, said plurality of court units being arranged in sets of three units side-by-side; and a locking member adapted to be disposed in each pair of adjacent locking recesses on said units for positioning said units with all of their upper surfaces in the same plane, and at least one of said locking members for each of said sets in the longitudinal locking recesses being of the same length as said recesses, and another of said locking members being positioned in one of said locking recesses and extending therebeyond for positioning in a fourth unit in another set of units aligned therewith.
Claim 3
Dependent Claim
80 words
The assembly set forth in claim 1, wherein each of said court units comprises: an upper surface sheet; a lower base sheet of substantially the same size of said upper sheet and disposed directly in alignment therebelow; a core layer secured between and to said upper and lower sheets; and said core layer having a lesser length and width than said upper and lower sheets for forming a locking recess between said sheets at each end of each side thereoF.
Claim 4
Dependent Claim
52 words
The assembly set forth in claim 2, wherein: said surface sheet and said base sheet are relatively rigid for withstanding the weight of humans without indentation by their shoes; and said core layer is relatively yieldable for providing yieldability of the surface sheet when subjected to the weight of humans playing thereon.
Claim 5
Dependent Claim
26 words
The assembly set forth in claim 3, wherein: said surface sheet and said base sheet are plywood; and said core layer is substantially entirely cellular material.
Claim 6
Dependent Claim
31 words
The assembly set forth in claim 1, wherein: each set of three units has at least one lateral locking member in the lateral locking recesses for two of the adjacent units.
Claim 7
Dependent Claim
37 words
The assembly set forth in claim 1, including: a support framework adapted to receive and support the outermost units, whereby the entire assembly of units is supported through the interconnection of said units by said locking members.
Claim 8
Dependent Claim
40 words
The assembly set forth in claim 1, including: an outer retainer surrounding said plurality of units for confining same in a predetermined location but unconnected therewith to provide for said units a confined expansion and contraction area within the retainer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-13 | 1978-07-15 | 1979-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-13 | 1982-07-15 | 1983-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-13 | 1986-07-15 | 1987-01-14 | $7700.00 | Window Closed / Lapsed |