US3457148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparation of stabilized metal film resistors
Assignee: AT&T Inc
•
Filing: 1964-10-19
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Granted: 1969-07-22
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Expires: 1984-10-19
Abstract
No abstract record available.
Inventors
- 👤 Herbert A Waggener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:45
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/22; H01C17/26; H01C17/262; H01B; H01B1/00; H01C17/003; H01C17/02; H01C17/06; H01C17/075; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082
Claims Analysis
Total Claims: 0
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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) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |