Patent US2994057A successfully refreshed from Google Patents.
US2994057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrowhead lead for wiring board
Assignee: Sprague Electric Co
•
Filing: 1957-08-14
•
Granted: 1961-07-25
•
Expires: 1977-08-14
Abstract
No abstract record available.
Inventors
- 👤 Frank L Donohue
- 👤 James R Teeple
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:18
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/30; H05K3/306; H05K3/308; H05K2201/00; H05K2201/10; H05K2201/10613; H05K2201/10621; H05K2201/10651; H05K2201/10742; H05K2201/1075; H05K2201/1078; H05K2201/10878; H05K3/32; H05K3/34; H05K3/3447; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49169
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |