US3545987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent yttria-based ceramics and method for producing same
Assignee: General Electric Co
•
Filing: 1966-09-28
•
Granted: 1970-12-08
•
Expires: 1986-09-28
Abstract
No abstract record available.
Inventors
- 👤 Richard C Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:02
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/50; C04B35/505
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3141782A
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US3026210A
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US3278454A
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US3377176A
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US3363134A
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US3311482A
Cited
US3432314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |