Patent US2887627A successfully refreshed from Google Patents.
US2887627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectifier and method of making the same
Assignee: Individual
•
Filing: 1953-01-09
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Granted: 1959-05-19
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Expires: 1973-01-09
Abstract
No abstract record available.
Inventors
- 👤 John W Haas
- 👤 Waldo B England
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:53
CPC Classifications
H; H10; H10D; H10D48/00; H10D48/01; H10D48/04; H10P; H10P14/00; H10P14/20; H10P14/29; H10P14/2901; H10P14/2923; H10P14/34; H10P14/3402; H10P14/38; H10P14/3802; H10W; H10W72/00
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) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |