US3380047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Digital complement generator
Assignee: RTX Corp
•
Filing: 1964-10-06
•
Granted: 1968-04-23
•
Expires: 1984-10-06
Abstract
No abstract record available.
Inventors
- 👤 Allen E Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:11
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/124
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2537427A
Cited
US3123818A
Cited
US3047855A
Cited
US2974316A
Cited
US3219995A
Cited
US3176241A
Cited
US3242478A
Cited
US3209348A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |