Patent US2674346A successfully refreshed from Google Patents.
US2674346A
Expired / Lapsed
US
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Transportation system
Assignee: Individual
•
Filing: 1950-04-01
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Granted: 1954-04-06
•
Expires: 1970-04-01
Abstract
No abstract record available.
Inventors
- 👤 Bellah Lester Roy
- 👤 Ross E Bellah
- 👤 William H Bellah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:53
CPC Classifications
B; B65; B65G; B65G35/00; B65G35/06; B65G35/063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US399299A
Cited
US1911630A
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US891882A
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US969269A
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US1102615A
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US1147831A
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US1681859A
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US1819017A
Cited
US1865596A
Cited
US2228034A
Cited
US2489732A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |