US2830210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc tube support
Assignee: General Electric Co
•
Filing: 1954-09-16
•
Granted: 1958-04-08
•
Expires: 1974-09-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Frank Jenne
- 👤 Robert W Schmies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:53
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/02; H01J61/30; H01J61/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1935685A
Cited
US2068596A
Cited
US2187736A
Cited
US2609584A
Cited
US2611883A
Cited
US2671183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |