US2799450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic circuits for complementing binary-coded decimal numbers
Assignee: Raytheon Co
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Filing: 1953-12-30
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Granted: 1957-07-16
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Expires: 1973-12-30
Abstract
No abstract record available.
Inventors
- 👤 Johnson Robert Royce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:57
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/491; G06F7/4912; G06F7/492; G06F7/493; G06F7/494; G06F2207/00; G06F2207/491; G06F2207/49105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2609143A
Cited
US2634052A
Cited
US2666575A
Cited
US2761621A
Cited
US2758788A
Cited
US2654080A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-15 | 1961-01-14 | 1961-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-15 | 1965-01-14 | 1965-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-15 | 1969-01-14 | 1969-07-16 | $7700.00 | Window Closed / Lapsed |