US3875714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interlockable panels
Assignee: Nayler Petroseals Ltd
•
Filing: 1973-04-03
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Granted: 1975-04-08
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Expires: 1993-04-03
Abstract
Abstract A panel which can be interlocked with similar panels to form a composite structure. The panel has at opposite ends respectively complementary parts defining channels, one of which has its open side directed upwardly whilst the other has its open side directed downwardly. Both marginal side edges of the panel incorporating channel forming portions of which the portions on the longitudinal half of the panel incorporating the end with an upwardly directed channel are directed downwardly, whilst the other longitudinal half has portions forming complementary upwardly directed channels.
Inventors
- 👤 Irenie Mary Nayler
- 👤 Alan John Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:52
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/04; E04B9/0478; B; B65; B65D; B65D88/00; B65D88/34; E04B1/00; E04B1/38; E04B1/61; E04B1/6104
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
223 words
A panel which can be interlocked with similar panels to form a composite structure the panel being of rectangular form and having at opposite ends first and second respectively complementary parts defining first and second channels, the first part having an upwardly projecting portion of a certain length and width spaced from said respective end by the width of said first channel and the second part having a downwardly facing portion of the same width as said first channel to form one wall portion of said second channel which has a width and length substantially the same as that of the upwardly projecting portion of said first part, both marginal side edges of the panel incorporating channel forming portions along the entire length of said respective side edges and open to each respective end of which the portions on the longitudinal half of the panel incorporating the first end have first downwardly projecting portions of certain width spaced from second downwardly projecting portions to define therebetween a first longitudinal channel, whilst the other longitudinal half has upwardly directed portions of a width substantially identical to the first longitudinal channel width and defining with the respective side edge a second longitudinal channel of a width the same as the width of said first downwardly projecting portions of said first longitudinal half of the panel.
Claim 2
Dependent Claim
223 words
A panel which can be interlocked with similar panels to form a composite structure the panel being of rectangular form and having at opposite ends first and second respectively complementary parts defining first and second channels, the first part having an upwardly projecting portion of a certain length and width spaced from said respective end by the width of said first channel and the second part having a downwardly facing portion of the same width as said first channel to form one wall portion of said second channel which has a width and length substantially the same as that of the upwardly projecting portion of said first part, both marginal side edges of the panel incorporating channel forming portions along the entire length of said respective side edges and open to each respective end of which the portions on the longitudinal half of the panel incorporating the first end have first downwardly projecting portions of certain width spaced from second downwardly projecting portions to define therebetween a first longitudinal channel, whilst the other longitudinal half has upwardly directed portions of a width substantially identical to the first longitudinal channel width and defining with the respective side edge a second longitudinal channel of a width the same as the width of said first downwardly projecting portions of said first longitudinal half of the panel.
Claim 3
Dependent Claim
54 words
A panel as claimed in claim 1, in which the complementary parts at opposite ends of the panel defining channels do not extend through the full width of the panel and the channel forming portions on both marginal side edges are co-terminus with the second part of the panel having a downwardly facing portion.
Claim 4
Dependent Claim
38 words
A panel as claimed in claim 1 in the form of an inverted tray having downwardly directed walls extending both longitudinally at the inside of said marginal side edges and transversely at the inside of said complementary parts.
Claim 5
Dependent Claim
22 words
A panel as claimed in claim 3 formed of polyurethane foam and incorporating material to minimise the risk of static electric charges.
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) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |