US2546472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1948-01-02
•
Granted: 1951-03-27
•
Expires: 1968-01-02
Abstract
No abstract record available.
Inventors
- 👤 Joseph F O'connor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:23
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/06; B62D53/061; B62D53/062; A; A01; A01B; A01B23/00; A01B23/04; A01B23/046; A01B73/00; A01B73/02; A01B73/04; A01B73/044
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1097806A
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US1786060A
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US1891517A
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US2240564A
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US2387568A
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US2404898A
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US2448443A
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US2454675A
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US2448119A
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US2442273A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |