US2622136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impulse generator
Assignee: Individual
•
Filing: 1949-07-26
•
Granted: 1952-12-16
•
Expires: 1969-07-26
Abstract
No abstract record available.
Inventors
- 👤 Christensen Frantz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:44
CPC Classifications
H; H05; H05C; H05C1/00; H05C1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1230728A
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US1452925A
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US1964439A
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US2082572A
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US2010398A
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US2179640A
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US2288203A
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US2481131A
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US2434671A
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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) | 1955-12-16 | 1956-06-16 | 1956-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-16 | 1960-06-16 | 1960-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-16 | 1964-06-16 | 1964-12-16 | $7700.00 | Window Closed / Lapsed |