US2667722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold for use in the manufacture of dry rectifiers
Assignee: Siemens Mobility Ltd
•
Filing: 1951-07-16
•
Granted: 1954-02-02
•
Expires: 1971-07-16
Abstract
No abstract record available.
Inventors
- 👤 Jenkins Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:13
CPC Classifications
H; H10; H10P; H10P95/00; B; B29; B29C; B29C33/00; C; C30; C30B; C30B11/00; H10D; H10D99/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1581829A
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US1536821A
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US1601123A
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US1908086A
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US1966615A
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US2048319A
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US2296575A
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US2276823A
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US2379919A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-01 | 1957-08-03 | 1958-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-01 | 1961-08-03 | 1962-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-01 | 1965-08-03 | 1966-02-02 | $7700.00 | Window Closed / Lapsed |