US3745058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building material and method of making it
Assignee: Saint Gobain Industries SA
•
Filing: 1970-09-08
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Granted: 1973-07-10
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Expires: 1990-09-08
Abstract
Abstract STRONG STRUCTURAL MATERIALS OF GOOD INSULATING AND FIREPROOFING VALUE ARE MADE FROM COMPRESSED POLYSTYRENE PEARLS AND INTERSTITIAL, HARDENED CEMENTITIOUS MATERIAL. D R A W I N G
Inventors
- 👤 A Paymal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:54
CPC Classifications
B; B28; B28B; B28B19/00; B28B19/003; B28B5/00; B28B5/02; B28B5/026; B28B5/027; B29; B29C; B29C67/00; B29C67/20; B29C67/207; E; E04; E04C; E04C2/00; E04C2/02; E04C2/04; E04C2/043; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249971; Y10T428/249972; Y10T428/249994; Y10T428/249999; Y10T428/25; Y10T428/254
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) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |