US2908157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite firebrick
Assignee: Foster Wheeler Inc
•
Filing: 1953-10-30
•
Granted: 1959-10-13
•
Expires: 1973-10-30
Abstract
No abstract record available.
Inventors
- 👤 Bliss Charles
- 👤 Jr Albert C Faatz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:14
CPC Classifications
F; F27; F27D; F27D1/00; F27D1/04; F27D1/06; F27D1/063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1309296A
Cited
US1666284A
Cited
US1430027A
Cited
US1448684A
Cited
US1709035A
Cited
US2043249A
Cited
US2242434A
Cited
US2270297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |