US848471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Keyboard for type-writing machines and pianofortes.
Assignee: Individual
•
Filing: 1906-07-25
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Granted: 1907-03-26
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Expires: 1926-07-25
Abstract
No abstract record available.
Inventors
- 👤 Jean Henri Laudenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:01
CPC Classifications
B; B41; B41J; B41J5/00; B41J5/08; B41J5/10; G; G06; G06F; G06F3/00; G06F3/01; G06F3/02; G06F3/0202
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) | 1910-03-25 | 1910-09-24 | 1911-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-03-25 | 1914-09-24 | 1915-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-03-25 | 1918-09-24 | 1919-03-26 | $7700.00 | Window Closed / Lapsed |