US3331173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compound construction elements and method of manufacture and assembly
Assignee: Individual
•
Filing: 1963-07-19
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Granted: 1967-07-18
•
Expires: 1983-07-19
Abstract
No abstract record available.
Inventors
- 👤 Elsner Lothar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:40
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/38; B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B32; B32B; B32B27/00; B60; B60P; B60P3/00; B60P3/32; B62; B62D; B62D29/00; B62D29/04; B62D29/043; B62D29/045; E04B; E04B1/00; E04B1/02; E04B1/14; E04C2/02; E04C2/10; E04C2/20; E04C2/205; E04C2/22; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1034; Y10T156/1089; Y10T156/1092; Y10T156/1093; Y10T428/00; Y10T428/23; Y10T428/233; Y10T428/249921; Y10T428/249953; Y10T428/249981; Y10T428/249982; Y10T428/249985
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
118 words
A LIGHTWEIGHT CONSTRUCTION ELEMENT OF HIGH STRENGTH TO WEIGHT RATIO, SAID ELEMENT COMPRISING: (A) A PAIR OF OUTER LAYERS, (B) A PLURALITY OF PIECES OF FOAMED MATERIAL POSITIONED BETWEEN SAID OUTER LAYERS, (C) SAID OUTER LAYERS BEING OF A GLASS FIBER FABRIC IMPREGNATED WITH SYNTHETIC PLASTIC ADHESIVE MATERIAL, (D) SAID PIECES OF FOAMED MATERIAL BEING POSITIONED CLOSELY TO ADJACENT FOAM PIECES, (E) AT LEAST ONE JOINT TAPE POSITIONED BETWEEN SAID ADJACENT PIECES AND BEING SUBSTANTIALLY TRANSVERSE TO AND HAVING A SIGNIFICANT PORTION PARALLELL TO SAID OUTER LAYERS, (F) SAID JOINT TAPE BEING OF A GLASS FIBER FABRIC IMPREGNATED WITH SYNTHETIC PLASTIC ADHESIVE MATERIAL AND SECURED TO SAID OUTER LAYERS AND TO SAID ADJACENT PIECES WITH SAID ADHESIVE MATERIAL.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |