US4069632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shuttering member
Assignee: Monsanto Ltd
•
Filing: 1973-10-30
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Granted: 1978-01-24
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Expires: 1993-10-30
Abstract
Abstract The shuttering member of this invention comprises a foamed resin block rabbeted along at least two opposed longitudinal edges of the same major surface of the block and having internal strengthening rods across the width of the block. The invention also comprises a method of producing a foamed shuttering member having strengthening rods.
Inventors
- 👤 Gerald Bode
- 👤 Roy Worrall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:56
CPC Classifications
E; E04; E04G; E04G11/00; E04G11/36; E04G11/40; E04G11/46; E04G9/00; E04G9/02; E04G9/05
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
81 words
A shuttering member comprising a foamed resin block having rabbets along at least two opposed longitudinal edges of the major surface of the block and having internal strengthening rods across the width of the block, in which the rabbeted face has a longitudinal channel cut into it over at least a part of the length of the block, the rods have legs at their extremities that extend at right angles to the rods and parallel to the side of the channel.
Claim 2
Dependent Claim
81 words
A shuttering member comprising a foamed resin block having rabbets along at least two opposed longitudinal edges of the major surface of the block and having internal strengthening rods across the width of the block, in which the rabbeted face has a longitudinal channel cut into it over at least a part of the length of the block, the rods have legs at their extremities that extend at right angles to the rods and parallel to the side of the channel.
Claim 3
Dependent Claim
28 words
A member of claim 1 in which the extremities of the legs are flush with the rabbet surfaces which are parallel to the rabbeted face of the block.
Claim 4
Dependent Claim
33 words
A member of claim 1, in which the extremities of the legs are rabbeted such that leg rabbeted surfaces are formed which are flush with the surfaces of the rabbets in the block.
Claim 5
Dependent Claim
15 words
A member of claim 1 in which the rods having legs are made from wood.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
US3579937A
Cited
US3794433A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-23 | 1981-07-25 | 1982-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-23 | 1985-07-25 | 1986-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-23 | 1989-07-25 | 1990-01-24 | $7700.00 | Window Closed / Lapsed |