US2967267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactive intercoupling of modular units
Assignee: Northrop Grumman Guidance and Electronics Co Inc
•
Filing: 1958-03-26
•
Granted: 1961-01-03
•
Expires: 1978-03-26
Abstract
No abstract record available.
Inventors
- 👤 Steinman Leon Harold
- 👤 Merritt L Macknight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:27
CPC Classifications
H; H01; H01F; H01F38/00; H01F38/14; H05; H05K; H05K7/00; H05K7/02; Y; Y10; Y10S; Y10S336/00; Y10S336/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1501649A
Cited
US1612952A
Cited
US2133494A
Cited
US2379800A
Cited
US2415688A
Cited
US2474988A
Cited
US2783416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-03 | 1964-07-04 | 1965-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-03 | 1968-07-04 | 1969-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-03 | 1972-07-04 | 1973-01-03 | $7700.00 | Window Closed / Lapsed |