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US804387A
Expired / Lapsed
US
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Locking device for incandescent-lamp bulbs.
Assignee: Individual
•
Filing: 1905-02-18
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Granted: 1905-11-14
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Expires: 1925-02-18
Abstract
No abstract record available.
Inventors
- 👤 Ralph E Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:38
CPC Classifications
E; E05; E05B; E05B73/00; E05B73/0017; E05B73/0029; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49893; Y10T403/00; Y10T403/57; Y10T403/5761; Y10T403/5766; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5646; Y10T70/5854; Y10T70/5867
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) | 1908-11-13 | 1909-05-15 | 1909-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-11-13 | 1913-05-15 | 1913-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-11-13 | 1917-05-15 | 1917-11-14 | $7700.00 | Window Closed / Lapsed |