Patent US980623A successfully refreshed from Google Patents.
US980623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device to facilitate writing by the blind.
Assignee: Individual
•
Filing: 1909-03-26
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Granted: 1911-01-03
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Expires: 1929-03-26
Abstract
No abstract record available.
Inventors
- 👤 Orin C Frost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:17
CPC Classifications
G; G09; G09B; G09B21/00; G09B21/001; G09B21/002
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) | 1914-01-02 | 1914-07-04 | 1915-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-01-02 | 1918-07-04 | 1919-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-01-02 | 1922-07-04 | 1923-01-03 | $7700.00 | Window Closed / Lapsed |