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US2654839A
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Electric pulse generator
Assignee: Individual
•
Filing: 1949-02-24
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Granted: 1953-10-06
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Expires: 1969-02-24
Abstract
No abstract record available.
Inventors
- 👤 Lyman R Spaulding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:37
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/01; H03K3/00; H03K3/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB491741A
Cited
US2412485A
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US2355363A
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US2441957A
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US2428926A
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US2430154A
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US2435958A
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US2463969A
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US2464393A
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US2419340A
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US2554172A
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US2570442A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |