Patent US2798019A successfully refreshed from Google Patents.
US2798019A
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Structural board
Assignee: CIE INTERNATIONALE DE BREVETS
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Filing: 1952-09-12
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Granted: 1957-07-02
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Expires: 1972-09-12
Abstract
No abstract record available.
Inventors
- 👤 Verbestel Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:30
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/16; D; D21; D21J; D21J1/00; D21J1/08; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24132; Y10T428/249921; Y10T428/249953; Y10T428/249962; Y10T428/249964; Y10T428/249965; Y10T428/31504; Y10T428/31942; Y10T428/31949
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A STRUCTURAL BOARD COMPRISING A PLURALITY OF FLAT FLAX SHIVES SUBSTANTIALLY FREE FROM FLAX FIBERS, EACH SHIVE COMPRISING A SECTION OF THE WOODY PORTION OF THE STEM OF THE FLAX PLANT, WITH THE CAPILLARY TUBES AND CONNECTIVE MATTER SUBSTANTIALLY INTACT AND HAVING FACES AND SIDE EDGES DEFINED BY SUBSTANTIALLY UNBROKEN CAPILLARY TUBES AND CHARACTERIZED BY PRESENTING A MINIMUM OF SEVERED CAPILLARY TUBES FOR ABSORPTION OF ADHESIVE, ORIENTED IN THE BOARD WITH THEIR FLAT SURFACES GENERALLY PARALLEL TO EACH OTHER AND HAVING SUCH FLAT SURFACES BONDED TOGETHER WITH AND ADHESIVE, SAID SHIVES HAVING A SPEFIFIC SURFACE OF 150 CM.2/GR. AND ABOVE
Claim 2
Dependent Claim
100 words
A STRUCTURAL BOARD COMPRISING A PLURALITY OF FLAT FLAX SHIVES SUBSTANTIALLY FREE FROM FLAX FIBERS, EACH SHIVE COMPRISING A SECTION OF THE WOODY PORTION OF THE STEM OF THE FLAX PLANT, WITH THE CAPILLARY TUBES AND CONNECTIVE MATTER SUBSTANTIALLY INTACT AND HAVING FACES AND SIDE EDGES DEFINED BY SUBSTANTIALLY UNBROKEN CAPILLARY TUBES AND CHARACTERIZED BY PRESENTING A MINIMUM OF SEVERED CAPILLARY TUBES FOR ABSORPTION OF ADHESIVE, ORIENTED IN THE BOARD WITH THEIR FLAT SURFACES GENERALLY PARALLEL TO EACH OTHER AND HAVING SUCH FLAT SURFACES BONDED TOGETHER WITH AND ADHESIVE, SAID SHIVES HAVING A SPEFIFIC SURFACE OF 150 CM.2/GR. AND ABOVE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |