US2693392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheel tread varying means
Assignee: Allis Chalmers Corp
•
Filing: 1950-01-07
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Granted: 1954-11-02
•
Expires: 1970-01-07
Abstract
No abstract record available.
Inventors
- 👤 George S Grosch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:41
CPC Classifications
B; B60; B60B; B60B27/00; B60B27/0015; B60B27/0021; B60B27/06; B60B27/065; B60B35/00; B60B35/02; B60B35/10; B60B35/1009; B60B35/1018; B60B35/1036; B60B35/1072; B60B35/1081; B60B35/12; B60B35/121; B60B35/122; B60B35/16; B60B35/163; B60B2310/00; B60B2310/30; B60B2310/302; B60B2310/305; B60Y; B60Y2200/00; B60Y2200/20; B60Y2200/22; B60Y2200/221
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB504469A
Cited
US2327122A
Cited
US2235457A
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US2324681A
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US2458249A
Cited
US2417139A
Cited
US2432385A
Cited
US2472742A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-01 | 1958-05-03 | 1958-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-01 | 1962-05-03 | 1962-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-01 | 1966-05-03 | 1966-11-02 | $7700.00 | Window Closed / Lapsed |