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US3241802A Expired / Lapsed US ⏱️ 0.0 years remaining

Building form for concrete walls

Assignee: Individual
•
Filing: 1963-04-10
•
Granted: 1966-03-22
•
Expires: 1983-04-10
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Abstract

No abstract record available.

Inventors

  • 👤 Ernest R Lawrence

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 04:54
CPC Classifications
E; E04; E04G; E04G17/00; E04G17/06; E04G17/07; E04G17/0707; E04G17/0721; E04G11/00; E04G11/06; E04G11/08; E04G11/12; E04G2017/0646

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 108 words
A SECTIONAL FORM FOR POURED CONCRETE, VERTICAL WALLS COMPRISING: A PLURALITY OF SUBSTANTIALLY STANDARDIZED PANELS ARRANGED IN EDGE TO EDGE RELATION TO FORM A SUBSTANTIALLY HORIZONTAL ROW PRESENTING A SUBSTANTIALLY VERTICAL SURFACE AGAINST WHICH A MAIN WALL SURFACE IS CAST; OUTWARDLY PROJECTING CONNECTION POSTS RIGIDLY MOUNTED ADJACENT TO THE CORNERS OF SAID PANELS; CONNECTING MEANS FOR HORIZONTALLY ADJACENT PANEL EDGES COMPRISING VERTICALLY SPACED BRACKET PLATES AND VERTICALLY EXTENDING MEANS RIGIDLY CONNECTED TO SAID PLATES, SAID PLATES HAVING HORIZONTALLY SPACED SLOTS THEREIN RECEIVING SAID CONNECTION POSTS TO EXTEND THERETHROUGH; AND INTERLOCKING MEANS ENGAGING SAID CONNECTION POSTS BEHIND SAID BRACKET PLATES TO HOLD ADJACENT PANELS IN THE HORIZONTAL ROW TOGETHER.

References Cited (Backward Citations)

US1549607A Cited
US2613424A Cited
US2640249A Cited
US2688787A Cited
US2894312A Cited
US3055076A Cited
US2948045A Cited
US2997769A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-03-21 1969-09-20 1970-03-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-03-21 1973-09-20 1974-03-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-03-21 1977-09-20 1978-03-22 $7700.00 Window Closed / Lapsed

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