Patent US3390299A successfully refreshed from Google Patents.
US3390299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filament supports for tubular incandescent lamps
Assignee: General Electric Co
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Filing: 1965-11-08
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Granted: 1968-06-25
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Expires: 1985-11-08
Abstract
No abstract record available.
Inventors
- 👤 Robert H Van Sickler
- 👤 James F Dagley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:05
CPC Classifications
H; H01; H01K; H01K5/00; H01K5/02; H01K1/00; H01K1/18; H01K1/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1107650A
Cited
US3093769A
Cited
US3173051A
Cited
US3270238A
Cited
US3194999A
Cited
US3335312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |