Patent US3786885A successfully refreshed from Google Patents.
Patent US2619583A successfully refreshed from Google Patents.
US2619583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Luminaire for elongated tubular lamps
Assignee: General Electric Co
•
Filing: 1947-10-21
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Granted: 1952-11-25
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Expires: 1967-10-21
Abstract
No abstract record available.
Inventors
- 👤 George R Baumgartner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:01
CPC Classifications
F; F21; F21S; F21S8/00; F21S8/04; F21V; F21V17/00; F21V17/10; F21V17/101; F21V7/00; F21V7/005; F21Y; F21Y2103/00; F21Y2113/00
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |