US2919386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectifier and method of making same
Assignee: Hoffman Electronics Corp
•
Filing: 1955-11-10
•
Granted: 1959-12-29
•
Expires: 1975-11-10
Abstract
No abstract record available.
Inventors
- 👤 Ross Bernd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:51
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/10; H10D1/00; H10D1/40; H10D48/00; H10D48/30; H10D48/38; H10D99/00; H10P; H10P95/00; H10W; H10W70/00; H10W70/60; H10W70/67; H10W70/69; H10W76/00; H10W76/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2402661A
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US2671156A
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US2654059A
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US2757324A
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US2732519A
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US2714183A
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US2725505A
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US2736847A
Cited
US2778980A
Cited
US2784300A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |