Patent US4639301B2 successfully refreshed from Google Patents.
US4639301B2
Expired / Lapsed
US
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Focused ion beam processing
Assignee: MC ACQUISITION Corp
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Filing: 1985-04-24
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Granted: 1999-05-04
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Expires: 2005-04-24
Abstract
No abstract record available.
Inventors
- 👤 John A Doherty
- 👤 Billy W Ward
- 👤 David C Shaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:02
CPC Classifications
H; H01; H01J; H01J27/00; H01J37/00; H01J37/02; H01J37/026; H01J37/30; H01J37/305; H01J37/3053; H01J37/3056; H01J37/317
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-05-03 | 2002-11-02 | 2003-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-05-03 | 2006-11-02 | 2007-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-05-03 | 2010-11-02 | 2011-05-04 | $7700.00 | Window Closed / Lapsed |