US3382047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparing large single crystalline bodies of rare earth chalcogenides
Assignee: International Business Machines Corp
•
Filing: 1964-12-14
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Granted: 1968-05-07
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Expires: 1984-12-14
Abstract
No abstract record available.
Inventors
- 👤 Holtzberg Frederic
- 👤 Siegfried I Methfessel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:15
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/0009; G02F1/0036; C; C01; C01B; C01B19/00; C01B19/007; C30; C30B; C30B1/00; C30B1/02; C30B29/00; C30B29/10; C30B29/46; Y; Y10; Y10S; Y10S65/00; Y10S65/15
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) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |