US2898668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of semiconductor devices
Assignee: The General Electric Company PLC
•
Filing: 1955-08-17
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Granted: 1959-08-11
•
Expires: 1975-08-17
Abstract
No abstract record available.
Inventors
- 👤 Knott Ralph David
- 👤 Young Michael Rupert Platten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:21
CPC Classifications
H; H10; H10W; H10W72/00; B; B23; B23K; B23K20/00; H01; H01J; H01J5/00; H01J5/20; H01J5/22; H01J5/28; H01J5/32; H01J5/40; H01J5/42; H10D; H10D99/00; H10P; H10P95/00; H10W76/00; H10W76/40; H10W95/00; H01J2893/00; H01J2893/0033; H01J2893/0034; H01J2893/0037; H01J2893/0044; Y; Y10; Y10S; Y10S228/00; Y10S228/904; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49169
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733390A
Cited
US2735919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |