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Patent US3549393A successfully refreshed from Google Patents.
US3549393A
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Precision tolerance ceramic and method of preparing same
Assignee: Ceram Corp
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Filing: 1966-08-08
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Granted: 1970-12-22
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Expires: 1986-08-08
Abstract
No abstract record available.
Inventors
- 👤 Vito D Elarde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:12
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/626; C04B35/63; C04B35/632; C04B35/634; C04B35/63404; C04B35/63408; C04B35/01; C04B35/16; C04B35/18; C04B35/63436; C04B35/63448; C04B35/63468; C04B2235/00; C04B2235/02; C04B2235/30; C04B2235/48; C04B2235/483
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) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |