US3118221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making wafers with disseminated particles
Assignee: General Dynamics Corp
•
Filing: 1959-02-26
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Granted: 1964-01-21
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Expires: 1979-02-26
Abstract
No abstract record available.
Inventors
- 👤 Turovlin Bernard
- 👤 James R Lindgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:33
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/10; C22C1/1036; C22C1/1073; G; G21; G21C; G21C7/00; G21C7/02; G21C7/04; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2290734A
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US2727996A
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US2866741A
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US2917821A
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US2885287A
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US2843539A
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US2922223A
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US2805473A
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US2859163A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |