US2551771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical pulse generator
Assignee: Lanteris Space LLC
•
Filing: 1944-08-30
•
Granted: 1951-05-08
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Expires: 1964-08-30
Abstract
No abstract record available.
Inventors
- 👤 Sterling C Spielman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:19
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/156
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2085402A
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US2181309A
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US2193850A
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US2166688A
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US2266668A
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US2230926A
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US2277000A
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US2426216A
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US2438904A
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US2425600A
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US2365512A
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US2399135A
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US2434920A
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US2423304A
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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) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |