Patent US2427445A successfully refreshed from Google Patents.
US2427445A
Expired / Lapsed
US
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Automatic dual tire equalizer
Assignee: Individual
•
Filing: 1943-07-15
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Granted: 1947-09-16
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Expires: 1963-07-15
Abstract
No abstract record available.
Inventors
- 👤 Davidson Alf Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:07
CPC Classifications
B; B60; B60C; B60C5/00; B60C5/20; B60C5/22; B60C17/00; B60C17/01; B60C17/02; Y; Y10; Y10T; Y10T137/00; Y10T137/3584; Y10T137/36; Y10T137/8593; Y10T137/87153
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-15 | 1951-03-17 | 1951-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-15 | 1955-03-17 | 1955-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-15 | 1959-03-17 | 1959-09-16 | $7700.00 | Window Closed / Lapsed |