US2850061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Center post for tire changer
Assignee: Individual
•
Filing: 1955-02-25
•
Granted: 1958-09-02
•
Expires: 1975-02-25
Abstract
No abstract record available.
Inventors
- 👤 Harry G Twiford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:56
CPC Classifications
B; B60; B60C; B60C25/00; B60C25/01; B60C25/05; B60C25/132; B60C25/135
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1341727A
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US2485202A
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US2547976A
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GB637555A
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US2471642A
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US2505172A
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US2607403A
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US2569789A
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US2556024A
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US2693228A
Cited
US2708954A
Cited
US2712350A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |