US2965790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure gas lamp
Assignee: Osram GmbH
•
Filing: 1955-05-10
•
Granted: 1960-12-20
•
Expires: 1975-05-10
Abstract
No abstract record available.
Inventors
- 👤 Ittig Kurt
- 👤 Larche Kurt
- 👤 Schwiecker Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:17
CPC Classifications
H; H01; H01J; H01J61/00; H01J61/84; H01J61/86
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2093892A
Cited
US2060043A
Cited
GB485489A
Cited
US2567491A
Cited
FR920517A
Cited
US2459579A
Cited
US2697183A
Cited
US2707247A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |