US890894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1908-02-11
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Granted: 1908-06-16
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Expires: 1928-02-11
Abstract
No abstract record available.
Inventors
- 👤 William H Ehrhart
- 👤 George W Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:01
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/20; B23B31/201; B23B31/207; B23B31/2073; F; F16; F16B; F16B2200/00; F16B2200/69; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17411; Y10T279/17529; Y10T279/17538; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32951
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) | 1911-06-16 | 1911-12-16 | 1912-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-06-16 | 1915-12-16 | 1916-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-06-16 | 1919-12-16 | 1920-06-16 | $7700.00 | Window Closed / Lapsed |