Patent US1822093A successfully refreshed from Google Patents.
US1822093A
Expired / Lapsed
US
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Tractor
Assignee: Case LLC
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Filing: 1930-03-31
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Granted: 1931-09-08
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Expires: 1950-03-31
Abstract
No abstract record available.
Inventors
- 👤 Robert O Hendrickson
- 👤 Nelson Tolmar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:14
CPC Classifications
B; B60; B60B; B60B27/00; B60B27/06; B60B27/065; B60B35/00; B60B35/02; B60B35/10; B60B35/1072; B60B35/109; B60B35/12; B60B35/121; B60B35/16; B60B35/163; B60B2310/00; B60B2310/30; B60B2310/305; B60B2380/00; B60B2380/10; B60B2380/14; B60Y; B60Y2200/00; B60Y2200/20; B60Y2200/22; B60Y2200/221
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1934-09-07 | 1935-03-09 | 1935-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-09-07 | 1939-03-09 | 1939-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-09-07 | 1943-03-09 | 1943-09-08 | $7700.00 | Window Closed / Lapsed |