Patent US2663442A successfully refreshed from Google Patents.
Patent US2881369A successfully refreshed from Google Patents.
US2881369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass sealed crystal rectifier
Assignee: Pacific Semiconductors Inc
•
Filing: 1955-03-21
•
Granted: 1959-04-07
•
Expires: 1975-03-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Justice N Carman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:14
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/60; H10D; H10D64/00; H10D64/20; H10D64/23; H10W72/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1601927A
Cited
US1522993A
Cited
US2189887A
Cited
US2204549A
Cited
US2205251A
Cited
US2404057A
Cited
US2482902A
Cited
US2532907A
Cited
US2632042A
Cited
US2748326A
Cited
US2694168A
Cited
US2753497A
Cited
US2721839A
Cited
US2783197A
Cited
US2708250A
Cited
US2751529A
Cited
US2725505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |