US2834918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric discharge apparatus
Assignee: Westinghouse Electric Corp
•
Filing: 1953-09-04
•
Granted: 1958-05-13
•
Expires: 1973-09-04
Abstract
No abstract record available.
Inventors
- 👤 Edward C Hartwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:28
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/24; B23K11/26
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2210523A
Cited
US2298240A
Cited
US2424999A
Cited
US2403955A
Cited
US2594016A
Cited
US2574373A
Cited
US2611863A
Cited
US2533369A
Cited
US2677052A
Cited
US2586592A
Cited
US2614240A
Cited
US2659008A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |