US4361964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lay out square
Assignee: Individual
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Filing: 1981-03-03
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Granted: 1982-12-07
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Expires: 2001-03-03
Abstract
Abstract This invention relates to a lay out square which can be folded from a flat position for storage to a position wherein the legs are substantially perpendicular to each other. A body comprising first and second legs spaced apart equal distances form a U-shaped member which is joined to a face marking portion formed by third and fourth legs aligned where first and second legs and having hinge means to pivotally secure the body portion to the body at substantially right angles.
Inventors
- 👤 John W. Hennessee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:49
CPC Classifications
B; B25; B25H; B25H7/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
155 words
A lay out square for use in constructing wall sections comprising: first and second leg members having a width equal to that of the edge width of the construction members being used; an end member joining said first and second legs to form a U-shaped member, the first and second legs being spaced apart a distance equal to the width of one leg; third and fourth legs being equal in width to the first and second legs and being spaced to align with said first and second legs; a connector member joining said third and fourth legs at one end; and means pivotally joining said first and third legs and said second and fourth legs to permit movement of the third and fourth legs from a position substantially aligned and overlapping said first and second legs to a position wherein the third and fourth legs are locked substantially perpendicular to the first and second legs.
Claim 2
Dependent Claim
155 words
A lay out square for use in constructing wall sections comprising: first and second leg members having a width equal to that of the edge width of the construction members being used; an end member joining said first and second legs to form a U-shaped member, the first and second legs being spaced apart a distance equal to the width of one leg; third and fourth legs being equal in width to the first and second legs and being spaced to align with said first and second legs; a connector member joining said third and fourth legs at one end; and means pivotally joining said first and third legs and said second and fourth legs to permit movement of the third and fourth legs from a position substantially aligned and overlapping said first and second legs to a position wherein the third and fourth legs are locked substantially perpendicular to the first and second legs.
Claim 3
Dependent Claim
49 words
A lay out square according to claim 1 including a first marking notch on said end member joining said first and second legs to indicate half the width of the construction members and a second notch formed on said end member indicating the full width of said construction members.
Claim 4
Dependent Claim
23 words
A lay out square according to claim 1 wherein said first and second legs are substantially longer than said third and fourth legs.
Claim 5
Dependent Claim
46 words
A lay out square according to claim 1 wherein said means pivotally joining said first and second legs and said third and fourth legs comprises a self-locking hinge adapted to lock when the third and fourth legs are substantially perpendicular to the first and second legs.
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) | 1985-12-06 | 1986-06-07 | 1986-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-06 | 1990-06-07 | 1990-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-06 | 1994-06-07 | 1994-12-07 | $7700.00 | Window Closed / Lapsed |