Patent US3049701A successfully refreshed from Google Patents.
US3049701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Converting devices
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1957-08-15
•
Granted: 1962-08-14
•
Expires: 1977-08-15
Abstract
No abstract record available.
Inventors
- 👤 Amdahl Gene Myron
- 👤 Frady William Ensign
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:43
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/12; H03M1/34; H03M1/38; H03M1/46; H03M1/462
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2784907A
Cited
US2754503A
Cited
US2736889A
Cited
US2865564A
Cited
US2817704A
Cited
US2824285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-13 | 1966-02-12 | 1966-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-13 | 1970-02-12 | 1970-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-13 | 1974-02-12 | 1974-08-14 | $7700.00 | Window Closed / Lapsed |