US3426173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machining device using a corpuscular beam
Assignee: Messer Griesheim GmbH
•
Filing: 1965-08-06
•
Granted: 1969-02-04
•
Expires: 1985-08-06
Abstract
No abstract record available.
Inventors
- 👤 Karl Heinz Steigerwald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:56
CPC Classifications
H; H01; H01J; H01J37/00; H01J37/30; H01J37/301
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2899556A
Cited
US2844706A
Cited
US3043728A
Cited
US3112391A
Cited
US3136882A
Cited
US3136883A
Cited
US3301993A
Cited
FR1367806A
Cited
US3250842A
Cited
US3219792A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |