Patent US2718601A successfully refreshed from Google Patents.
US2718601A
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Pulse generator
Assignee: Monroe Calculating Machine Co
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Filing: 1951-06-02
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Granted: 1955-09-20
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Expires: 1971-06-02
Abstract
No abstract record available.
Inventors
- 👤 Walter S Oliwa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:22
CPC Classifications
H; H04; H04M; H04M19/00; H04M19/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1475933A
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US1914215A
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US2221867A
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US2336897A
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US2298003A
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US2265224A
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US2237003A
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US2376225A
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US2510337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-19 | 1959-03-21 | 1959-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-19 | 1963-03-21 | 1963-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-19 | 1967-03-21 | 1967-09-20 | $7700.00 | Window Closed / Lapsed |