Patent US3517644A successfully refreshed from Google Patents.
US3517644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making metal alloy resistors
Assignee: Duracell Inc USA
•
Filing: 1968-12-16
•
Granted: 1970-06-30
•
Expires: 1988-12-16
Abstract
No abstract record available.
Inventors
- 👤 Charles A Baer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:27
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/223; C23C14/50; C23C14/505; H; H01; H01C; H01C17/00; H01C17/06; H01C17/075; H01C17/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49099; Y10T29/49117; Y10T29/49169; Y10T29/49171; Y10T29/49172
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) | 1973-06-29 | 1973-12-29 | 1974-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-29 | 1977-12-29 | 1978-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-29 | 1981-12-29 | 1982-06-30 | $7700.00 | Window Closed / Lapsed |