Patent US2661900A successfully refreshed from Google Patents.
US2661900A
Expired / Lapsed
US
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Mileage calculator
Assignee: Individual
•
Filing: 1951-08-15
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Granted: 1953-12-08
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Expires: 1971-08-15
Abstract
No abstract record available.
Inventors
- 👤 Ernest W Pastorius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:06
CPC Classifications
G; G06; G06G; G06G1/00; G06G1/0005; G06G1/0063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |