US3401375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for performing character operations
Assignee: Digital Equipment Corp
•
Filing: 1965-10-01
•
Granted: 1968-09-10
•
Expires: 1985-10-01
Abstract
No abstract record available.
Inventors
- 👤 Chester G Bell
- 👤 Kotok Alan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:28
CPC Classifications
G; G06; G06F; G06F12/00; G06F12/02; G06F12/04; G06F9/00; G06F9/06; G06F9/30; G06F9/30003; G06F9/30007; G06F9/30018; G06F9/30036; G06F9/30038; G06F9/34; G06F9/355
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) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |