US3399385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Activity reporting system
Assignee: AT&T Inc
•
Filing: 1965-12-07
•
Granted: 1968-08-27
•
Expires: 1985-12-07
Abstract
No abstract record available.
Inventors
- 👤 Gorman James Edward
- 👤 Green Geoffrey Dawson
- 👤 Tevonian Ronald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:03
CPC Classifications
G; G06; G06F; G06F13/00; G06F13/14; G06F13/20; G06F13/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3029414A
Cited
US3200380A
Cited
US3283306A
Cited
US3286240A
Cited
US3299210A
Cited
US3302182A
Cited
US3323110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-27 | 1972-02-26 | 1972-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-27 | 1976-02-26 | 1976-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-27 | 1980-02-26 | 1980-08-27 | $7700.00 | Window Closed / Lapsed |