Patent US2934665A successfully refreshed from Google Patents.
US2934665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ion source
Assignee: Siemens Schuckertwerke AG
•
Filing: 1956-09-12
•
Granted: 1960-04-26
•
Expires: 1976-09-12
Abstract
No abstract record available.
Inventors
- 👤 Ziegler Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:00
CPC Classifications
H; H01; H01J; H01J27/00; H01J27/02; H01J27/08; H01J27/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1929124A
Cited
US2215787A
Cited
US2227829A
Cited
US2508954A
Cited
US2636990A
Cited
US2716197A
Cited
US2714679A
Cited
US2806161A
Cited
US2831134A
Cited
US2805365A
Cited
US2762941A
Cited
US2764707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |