Patent US3834718A successfully refreshed from Google Patents.
Patent US2896306A successfully refreshed from Google Patents.
US2896306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lamp fabrication
Assignee: Westinghouse Electric Corp
•
Filing: 1953-06-30
•
Granted: 1959-07-28
•
Expires: 1973-06-30
Abstract
No abstract record available.
Inventors
- 👤 Eberiel Herman James
- 👤 May Frederick Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:24
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/50; H01J5/54; H01J5/62
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2069386A
Cited
US2077199A
Cited
US2327033A
Cited
US2390139A
Cited
US2342041A
Cited
US2403137A
Cited
US2667189A
Cited
US2711791A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |