US3486221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High energy beam trimming of electrical components
Assignee: Sprague Electric Co
•
Filing: 1967-06-14
•
Granted: 1969-12-30
•
Expires: 1987-06-14
Abstract
No abstract record available.
Inventors
- 👤 Preston Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:45
CPC Classifications
H; H10; H10P; H10P95/00; H01; H01C; H01C17/00; H01C17/22; H01C17/24; H01C17/2404; H10W; H10W74/00; H10W74/01; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49099
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3140379A
Cited
US3293582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |