US3470410A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bromine regenerative cycle incandescent lamps with protective overwind coils on coiled filament legs
Assignee: General Electric Co
•
Filing: 1967-01-16
•
Granted: 1969-09-30
•
Expires: 1987-01-16
Abstract
No abstract record available.
Inventors
- 👤 Glenn F Patsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:08
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/02; H01K1/16; H01K1/18; H01K1/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US497038A
Cited
US1145213A
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US2180538A
Cited
US2527799A
Cited
US3091718A
Cited
US3321662A
Cited
US3270238A
Cited
US3383539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |