Patent US2432140A successfully refreshed from Google Patents.
US2432140A
Expired / Lapsed
US
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Variable potential integrating device
Assignee: Individual
•
Filing: 1944-07-13
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Granted: 1947-12-09
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Expires: 1964-07-13
Abstract
No abstract record available.
Inventors
- 👤 Richard C Dehmel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:33
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/12; G06G7/18; G06G7/188
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2185767A
Cited
US2163411A
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US2232212A
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US2273987A
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US2329400A
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US2365937A
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US2368582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-08 | 1951-06-09 | 1951-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-08 | 1955-06-09 | 1955-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-08 | 1959-06-09 | 1959-12-09 | $7700.00 | Window Closed / Lapsed |