US3552079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated tongue and groove building element
Assignee: V JEPPESENS SAVVAERK AS
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Filing: 1968-10-14
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Granted: 1971-01-05
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Expires: 1988-10-14
Abstract
Abstract A BUILDING ELEMENT COMPRISING A PANEL-SHAPED INSULATING MATERIAL EXTENDING BETWEEN TWO TIMBER HALF-BEAMS, THE WHOLE ELEMENT BEING FORMED AS A BEAM WITH ONE OR MORE TONGUES AND GROOVES AND WITH THE INSULATING MATERIAL EXTENDING IN THE FULL HEIGHT OF THE BEAM FROM THE BOTTOM OF A GROOVE OR A SURFACE BETWEEN TWO TONGUE THE OPPOSITE EDGE OF THE BEAM, AND AN ANGLE JOINT BETWEEN TWO WALLS MADE OF BUILDING ELEMENTS HAVING NOTCHES ROUND A NECK SECTION FOR MUTUAL CONNECTION OF THE ELEMENTS.
Inventors
- 👤 Aage Mortensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:25
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/56; E04B2/70; E04B2/701; E04B2/702
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |