US3450082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load-bearing member for curved ceramic segments subjected to high compressive loads
Assignee: PPG Industries Inc
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Filing: 1968-01-29
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Granted: 1969-06-17
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Expires: 1988-01-29
Abstract
No abstract record available.
Inventors
- 👤 Henry M Demarest Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:07
CPC Classifications
B; B63; B63B; B63B3/00; B63B3/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |