Patent US3548189A successfully refreshed from Google Patents.
US3548189A
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Method employing ion beams for polishing and figuring refractory dielectrics
Assignee: ADEN B MEINEL
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Filing: 1965-06-16
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Granted: 1970-12-15
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Expires: 1985-06-16
Abstract
No abstract record available.
Inventors
- 👤 Aden B Meinel
- 👤 Stanley Bashkin
- 👤 Donald A Loomis
- 👤 John B Schroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:03
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C03; C03C; C03C23/00; C03C23/0005; C03C23/0055; C04B41/53; C04B41/5338; C04B41/5346; C04B41/80; C04B41/91; H; H01; H01J; H01J37/00; H01J37/30; H01J37/3002; H01J37/3005; H01J37/305; H01J37/3053
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2467224A
Cited
US2702863A
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US2858444A
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US2890342A
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US2806124A
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US3050616A
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US2944172A
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US3192892A
Cited
US3351731A
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US3341442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |