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Patent US850997A successfully refreshed from Google Patents.
US850997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Eye-guard.
Assignee: Individual
•
Filing: 1906-12-04
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Granted: 1907-04-23
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Expires: 1926-12-04
Abstract
No abstract record available.
Inventors
- 👤 Harvey S Cover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:05
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/02; A61F9/026
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) | 1910-04-22 | 1910-10-22 | 1911-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-04-22 | 1914-10-22 | 1915-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-04-22 | 1918-10-22 | 1919-04-23 | $7700.00 | Window Closed / Lapsed |