US2505907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Discharge electrode
Assignee: Research Corp
•
Filing: 1946-10-31
•
Granted: 1950-05-02
•
Expires: 1966-10-31
Abstract
No abstract record available.
Inventors
- 👤 Archibald F Meston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:25
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/40; B03C3/41; B03C2201/00; B03C2201/10; Y; Y10; Y10S; Y10S55/00; Y10S55/38; Y10T; Y10T29/00; Y10T29/36; Y10T29/49; Y10T29/49544; Y10T29/4956; Y10T29/49561
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE299476C
Cited
US777817A
Cited
US1067974A
Cited
DE344705C
Cited
US1357201A
Cited
US2195431A
Cited
US2061516A
Cited
US2231330A
Cited
US2352651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-01 | 1953-10-31 | 1954-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-01 | 1957-10-31 | 1958-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-01 | 1961-10-31 | 1962-05-02 | $7700.00 | Window Closed / Lapsed |