US3535498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Matrix of binary add-subtract arithmetic units with bypass control
Assignee: Detrex Corp
•
Filing: 1967-05-02
•
Granted: 1970-10-20
•
Expires: 1987-05-02
Abstract
No abstract record available.
Inventors
- 👤 Louis G Smith Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:24
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/52; G06F7/523; G06F7/53; G06F7/5306; G06F7/535; G06F7/544; G06F7/552; G06F7/5525; G06F7/57; H; H03; H03M; H03M7/00; H03M7/02; H03M7/12; G06F2207/00; G06F2207/38; G06F2207/3804; G06F2207/3808; G06F2207/3852; G06F2207/386; G06F2207/3868; G06F2207/535; G06F2207/5352; G06F2207/552; G06F2207/5523
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-19 | 1974-04-20 | 1974-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-19 | 1978-04-20 | 1978-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-19 | 1982-04-20 | 1982-10-20 | $7700.00 | Window Closed / Lapsed |