Patent US5439000A successfully refreshed from Google Patents.
US2941152A
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Impulse timing system and device
Assignee: Siemens and Halske AG
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Filing: 1954-09-22
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Granted: 1960-06-14
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Expires: 1974-09-22
Abstract
No abstract record available.
Inventors
- 👤 Gosslau Karlheinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:56
CPC Classifications
H; H04; H04Q; H04Q3/00; H04Q3/42; H03; H03K; H03K23/00; H03K23/64; H03K23/66; H03K23/665; H03K5/00; H03K5/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2519184A
Cited
US2621854A
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US2832044A
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US2644887A
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US2810518A
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US2740106A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |