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US3000645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extra passenger attachments for infants' vehicles and the like
Assignee: Individual
•
Filing: 1957-08-23
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Granted: 1961-09-19
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Expires: 1977-08-23
Abstract
No abstract record available.
Inventors
- 👤 Carl O Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:09
CPC Classifications
B; B62; B62B; B62B9/00; B62B9/28; B62B5/00; B62B5/08; B62B5/087
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US862936A
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US958307A
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US1077210A
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US1289347A
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US1520407A
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US1707186A
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US2153309A
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US2176326A
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US2574743A
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US2716043A
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US2727757A
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US2865656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |