US941680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Raised puzzle for the blind.
Assignee: Individual
•
Filing: 1909-06-05
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Granted: 1909-11-30
•
Expires: 1929-06-05
Abstract
No abstract record available.
Inventors
- 👤 Mary A Houghton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:10
CPC Classifications
A; A63; A63F; A63F9/00; A63F9/06; A63F9/10; A63F2009/1016; A63F2009/1022; A63F9/1044; Y; Y10; Y10S; Y10S273/00; Y10S273/27
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) | 1912-11-29 | 1913-05-31 | 1913-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-11-29 | 1917-05-31 | 1917-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-11-29 | 1921-05-31 | 1921-11-30 | $7700.00 | Window Closed / Lapsed |