Patent US3343915A successfully refreshed from Google Patents.
US3343915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Densification of refractory compounds
Assignee: Individual
•
Filing: 1964-10-30
•
Granted: 1967-09-26
•
Expires: 1984-10-30
Abstract
No abstract record available.
Inventors
- 👤 Ronald C Rossi
- 👤 Richard M Fulrath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:55
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/32; C04B33/326
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2427454A
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US2538959A
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US2618567A
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US3141782A
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US3025137A
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US3116137A
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US3026210A
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US3236595A
Cited
US3226456A
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US3311482A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |