Patent US3512254A successfully refreshed from Google Patents.
US3512254A
Expired / Lapsed
US
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Method of making an electrical device
Assignee: Corning Glass Works
•
Filing: 1967-12-14
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Granted: 1970-05-19
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Expires: 1987-12-14
Abstract
No abstract record available.
Inventors
- 👤 Weston H Jenkins
- 👤 Walter H Tarcza
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:37
CPC Classifications
H; H01; H01C; H01C1/00; H01C1/02; H01C1/024; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49099; Y10T29/49117; Y10T29/49124; Y10T29/4913; Y10T29/49146; Y10T29/49826; Y10T29/49945
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) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |