US2442428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calculating device
Assignee: NCR Voyix Corp
•
Filing: 1943-12-27
•
Granted: 1948-06-01
•
Expires: 1963-12-27
Abstract
No abstract record available.
Inventors
- 👤 Robert E Mumma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:04
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/491; G06F7/498; G06F7/4983; G06F7/4985; G06F5/00; G06F5/01; G06F5/015; H; H03; H03K; H03K3/00; H03K3/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2079429A
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US1927702A
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US2268859A
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US2242897A
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US2346616A
Cited
US2311455A
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US2259329A
Cited
US2294457A
Cited
US2300505A
Cited
US2310105A
Cited
US2354768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-01 | 1951-12-01 | 1952-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-01 | 1955-12-01 | 1956-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-01 | 1959-12-01 | 1960-06-01 | $7700.00 | Window Closed / Lapsed |