US896341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filament for incandescent lamps.
Assignee: General Electric Co
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Filing: 1904-11-14
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Granted: 1908-08-18
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Expires: 1924-11-14
Abstract
No abstract record available.
Inventors
- 👤 Willis R Whitney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:50
CPC Classifications
C; C01; C01F; C01F17/00; C01F17/20; H; H01; H01K; H01K1/00; H01K1/02; H01K1/04; H01K1/08; C01P; C01P2002/00; C01P2002/70; C01P2002/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1911-08-18 | 1912-02-17 | 1912-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-08-18 | 1916-02-17 | 1916-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-08-18 | 1920-02-17 | 1920-08-18 | $7700.00 | Window Closed / Lapsed |