US2664405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improved silicaceous insulating material
Assignee: Bjorksten Research Laboratories Inc
•
Filing: 1950-10-13
•
Granted: 1953-12-29
•
Expires: 1970-10-13
Abstract
No abstract record available.
Inventors
- 👤 Gordon W Andersen
- 👤 John M Diehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:21
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/24; C04B28/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
21 words
THE COMPOSITIONS OF MATTER COMPRISING THE REACTION PRODUCTS OF AQUEOUS SODIUM SILICATE, ALUMINUM POWDER AND ALKYL SILICATE IN THE FOLLOWING PROPORTIONS:
References Cited (Backward Citations)
GB571284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-28 | 1957-06-29 | 1957-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-28 | 1961-06-29 | 1961-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-28 | 1965-06-29 | 1965-12-29 | $7700.00 | Window Closed / Lapsed |