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Patent US2844308A successfully refreshed from Google Patents.
US2844308A
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Circuits for the addition and subtraction of numbers
Assignee: Societe dElectronique et dAutomatisme SA
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Filing: 1952-04-15
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Granted: 1958-07-22
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Expires: 1972-04-15
Abstract
No abstract record available.
Inventors
- 👤 Dussine Roger Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:13
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/50; G06F7/504
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR1008424A
Cited
US2610790A
Cited
US2611536A
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US2600744A
Cited
US2646501A
Cited
US2590950A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |