US2462681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming germanium films
Assignee: General Electric Co
•
Filing: 1947-07-03
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Granted: 1949-02-22
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Expires: 1967-07-03
Abstract
No abstract record available.
Inventors
- 👤 Vincent J Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:56
CPC Classifications
H; H10; H10P; H10P14/00; H10P14/20; H10P14/29; H10P14/2901; H10P14/2922; C; C23; C23C; C23C4/00; C23C4/04; C23C4/06; C23C4/08; C23C4/12; C23C4/129; H10P14/24; H10P14/34; H10P14/3402; H10P14/3404; H10P14/3411; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31627; Y10T428/3163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1128059A
Cited
US2354109A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-22 | 1952-08-23 | 1953-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-22 | 1956-08-23 | 1957-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-22 | 1960-08-23 | 1961-02-22 | $7700.00 | Window Closed / Lapsed |