Patent US2713635A successfully refreshed from Google Patents.
US2713635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron-cyclotron discharge apparatus
Assignee: Ernst Leitz Wetzlar GmbH
•
Filing: 1950-12-26
•
Granted: 1955-07-19
•
Expires: 1970-12-26
Abstract
No abstract record available.
Inventors
- 👤 Weissenberg Gustav
- 👤 Schulze Reinhart
- 👤 Schlogl Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:24
CPC Classifications
H; H01; H01J; H01J3/00; H01J3/02; H05; H05H; H05H13/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1417912A
Cited
US2103303A
Cited
US2159478A
Cited
US2242888A
Cited
US2243041A
Cited
US2265113A
Cited
US2297305A
Cited
US2555456A
Cited
US2559582A
Cited
US2626351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-18 | 1959-01-17 | 1959-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-18 | 1963-01-17 | 1963-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-18 | 1967-01-17 | 1967-07-19 | $7700.00 | Window Closed / Lapsed |