Patent US4142718A successfully refreshed from Google Patents.
US4142718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Table tennis table
Assignee: Rio Tinto Switzerland AG
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Filing: 1976-08-16
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Granted: 1979-03-06
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Expires: 1996-08-16
Abstract
Abstract A weatherproof table tennis table, includes a table top and an integrally made bent lateral rim. It consists of a composite plate of a thermoplastic plastics core and two metal facing sheets, a rectangular-shaped frame, and brackets for folding legs, the frame and brackets being connected rigidly to the rim.
Inventors
- 👤 Franz Luckey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:22
CPC Classifications
A; A47; A47B; A47B13/00; A47B13/08; A63; A63B; A63B71/00; A47B25/00; A47B25/003
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
100 words
A weatherproof table tennis top, comprising in combination: a flat top plate composed of a flat thermoplastic core sheet and two flat metal facing sheets, the plate having a top surface serving as a playing surface, a plurality of rim portions integral with said top plate and subtending a predetermined angle therewith for imparting a box-shape thereto, a steel frame fitted within the box-shaped top plate and said rim portions, and secured to at least said rim portions, and a plurality of brackets fitted within said steel frame and secured thereto for receiving legs to be connected to said brackets.
Claim 2
Dependent Claim
100 words
A weatherproof table tennis top, comprising in combination: a flat top plate composed of a flat thermoplastic core sheet and two flat metal facing sheets, the plate having a top surface serving as a playing surface, a plurality of rim portions integral with said top plate and subtending a predetermined angle therewith for imparting a box-shape thereto, a steel frame fitted within the box-shaped top plate and said rim portions, and secured to at least said rim portions, and a plurality of brackets fitted within said steel frame and secured thereto for receiving legs to be connected to said brackets.
Claim 3
Dependent Claim
139 words
A weatherproof table tennis top comprising in combination: a rigid frame having upright side portions, and a flat top plate including a plurality of bent rim portions depending from, and integral with, said top plate, said top plate and said rim portions being formed from a single blank composed of a flat thermoplastic core sheet and two flat metal facing sheets and having two major surfaces, one of the surfaces being a top surface serving as a playing surface of predetermined dimensions, and the other of the surfaces being the underside, said top plate covering said frame, and said rim portions being bent and then secured to at least some of the frame side portions to impart a box-shape to said top plate and said rim portions, free from any overlap between the rim portions secured to said frame.
Claim 4
Dependent Claim
139 words
A weatherproof table tennis top comprising in combination: a rigid frame having upright side portions, and a flat top plate including a plurality of bent rim portions depending from, and integral with, said top plate, said top plate and said rim portions being formed from a single blank composed of a flat thermoplastic core sheet and two flat metal facing sheets and having two major surfaces, one of the surfaces being a top surface serving as a playing surface of predetermined dimensions, and the other of the surfaces being the underside, said top plate covering said frame, and said rim portions being bent and then secured to at least some of the frame side portions to impart a box-shape to said top plate and said rim portions, free from any overlap between the rim portions secured to said frame.
Claim 5
Dependent Claim
35 words
A weatherproof table tennis top according to claim 2, wherein said rim portions have been cut out from the blank so that the box-shaped top plate and the rim portions are formed with smooth edges.
Claim 6
Dependent Claim
30 words
A weatherproof table tennis top according to claim 2, further comprising a plurality of brackets fitted within said rigid frame and secured thereto for receiving legs connectable to said brackets.
Claim 7
Dependent Claim
23 words
A weatherproof table tennis top according to claim 4, wherein each of said brackets has a plurality of connecting regions for the legs.
References Cited (Backward Citations)
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FR784500A
Cited
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Cited
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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) | 1982-03-05 | 1982-09-04 | 1983-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-05 | 1986-09-04 | 1987-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-05 | 1990-09-04 | 1991-03-06 | $7700.00 | Window Closed / Lapsed |