US904467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric-lighting device.
Assignee: METAL SPECIALTIES Manufacturing CO
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Filing: 1907-09-17
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Granted: 1908-11-17
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Expires: 1927-09-17
Abstract
No abstract record available.
Inventors
- 👤 Clarence Wheeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:42
CPC Classifications
F; F24; F24H; F24H6/00; F23; F23Q; F23Q7/00; F23Q7/14; F23Q7/20; B; B60; B60N; B60N3/00; B60N3/14; B60Q; B60Q3/00; B60Q3/30; B60Q3/35; F21; F21V; F21V33/00
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) | 1911-11-17 | 1912-05-18 | 1912-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-11-17 | 1916-05-18 | 1916-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-11-17 | 1920-05-18 | 1920-11-17 | $7700.00 | Window Closed / Lapsed |