Patent US2472542A successfully refreshed from Google Patents.
US2472542A
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US
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Electronic totalizing system
Assignee: Potter Instrument Co Inc
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Filing: 1948-01-29
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Granted: 1949-06-07
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Expires: 1968-01-29
Abstract
No abstract record available.
Inventors
- 👤 Nathan A Moerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:59
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/491; G06F7/498
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB357532A
Cited
US2354768A
Cited
US2401621A
Cited
US2404697A
Cited
US2403873A
Cited
US2422698A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-06 | 1952-12-06 | 1953-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-06 | 1956-12-06 | 1957-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-06 | 1960-12-06 | 1961-06-07 | $7700.00 | Window Closed / Lapsed |