US2925647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making electrical contacts
Assignee: Engelhard Industries Inc
•
Filing: 1958-01-28
•
Granted: 1960-02-23
•
Expires: 1978-01-28
Abstract
No abstract record available.
Inventors
- 👤 Sherwood P Jones
- 👤 Julian J Keenan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:54
CPC Classifications
H; H01; H01H; H01H11/00; H01H11/04; H01H11/06; H01H11/041; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204; Y10T29/49208; Y10T29/4921; Y10T29/49211; Y10T29/49213
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1907930A
Cited
US2199240A
Cited
US2181083A
Cited
US2087530A
Cited
US2222389A
Cited
US2439570A
Cited
US2649525A
Cited
US2706759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-22 | 1963-08-24 | 1964-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-22 | 1967-08-24 | 1968-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-22 | 1971-08-24 | 1972-02-23 | $7700.00 | Window Closed / Lapsed |