US2755159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor filling process for discharge lamps
Assignee: GTE Sylvania Inc
•
Filing: 1953-05-19
•
Granted: 1956-07-17
•
Expires: 1973-05-19
Abstract
No abstract record available.
Inventors
- 👤 Bernier Carl Joseph
- 👤 Goldsmith Oliver Bruce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:02
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/38; H01J9/395
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1009939A
Cited
US1623323A
Cited
US2284036A
Cited
US2311930A
Cited
US2456396A
Cited
US2667600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-17 | 1960-01-16 | 1960-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-17 | 1964-01-16 | 1964-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-17 | 1968-01-16 | 1968-07-17 | $7700.00 | Window Closed / Lapsed |