Patent US2095943A successfully refreshed from Google Patents.
US2095943A
Expired / Lapsed
US
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Mathematical calculating device
Assignee: —
•
Filing: —
•
Granted: 1937-10-12
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Expires: 1954-10-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:23
CPC Classifications
G; G06; G06G; G06G1/00; G06G1/02; G06G1/04; B; B43; B43L; B43L11/00; B43L11/02; B43L11/04; B43L11/043
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) | 1940-10-11 | 1941-04-12 | 1941-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-10-11 | 1945-04-12 | 1945-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-10-11 | 1949-04-12 | 1949-10-12 | $7700.00 | Window Closed / Lapsed |