US2901646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure mercury vapor lamp and method
Assignee: Westinghouse Electric Corp
•
Filing: 1956-04-02
•
Granted: 1959-08-25
•
Expires: 1976-04-02
Abstract
No abstract record available.
Inventors
- 👤 Vernon L Plagge
- 👤 Walter A Boyce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:41
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J61/00; H01J61/02; H01J61/30; H01J61/35
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2315286A
Cited
US2408822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |