US672303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supporting device for electric fans, & c.
Assignee: Individual
•
Filing: 1899-07-26
•
Granted: 1901-04-16
•
Expires: 1919-07-26
Abstract
No abstract record available.
Inventors
- 👤 Louis N D Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:28
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/02; E21B7/025; F; F16; F16M; F16M11/00; F16M11/02; F16M11/04; F16M11/06; F16M11/10; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32262; Y10T403/32606; Y10T403/32942
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) | 1904-04-15 | 1904-10-15 | 1905-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-04-15 | 1908-10-15 | 1909-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-04-15 | 1912-10-15 | 1913-04-16 | $7700.00 | Window Closed / Lapsed |