US823474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adding-machine.
Assignee: Unisys Corp
•
Filing: 1903-06-09
•
Granted: 1906-06-12
•
Expires: 1923-06-09
Abstract
No abstract record available.
Inventors
- 👤 Alvan Macauley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:35
CPC Classifications
G; G06; G06C; G06C11/00; G06C11/04
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) | 1909-06-11 | 1909-12-11 | 1910-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-06-11 | 1913-12-11 | 1914-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-06-11 | 1917-12-11 | 1918-06-12 | $7700.00 | Window Closed / Lapsed |