Patent US2669389A successfully refreshed from Google Patents.
US2669389A
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US
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Assignee: Individual
•
Filing: 1951-03-13
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Granted: 1954-02-16
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Expires: 1971-03-13
Abstract
No abstract record available.
Inventors
- 👤 Michael J Mesi
- 👤 Raymond G Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:25
CPC Classifications
A; A63; A63B; A63B71/00; A63B71/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2071184A
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US2005151A
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US2049634A
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US1922517A
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US2099754A
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US2068719A
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US2432324A
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US2564575A
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US2528394A
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US2568378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-15 | 1957-08-17 | 1958-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-15 | 1961-08-17 | 1962-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-15 | 1965-08-17 | 1966-02-16 | $7700.00 | Window Closed / Lapsed |