US2254358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor
Assignee: Allis Chalmers Corp
•
Filing: 1939-05-17
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Granted: 1941-09-02
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Expires: 1959-05-17
Abstract
No abstract record available.
Inventors
- 👤 Conrad E Frudden
- 👤 Walter F Strehlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:22
CPC Classifications
B; B60; B60B; B60B3/00; B60B3/04; B60B3/041; B60B23/00; B60B23/06; B60B23/10; B60B23/12; B60B35/00; B60B35/003; B60B35/02; B60B35/06; B60B35/10; B60B35/1009; B60B35/1027; B60B35/1072; B60B35/1081; B60B35/12; B60B35/121; B60B35/122; B60B35/16; B60B35/163; B62; B62D; B62D49/00; B62D49/06; B62D49/0607; B60B2310/00; B60B2310/30; B60B2310/305; B60B2310/306; B60B2380/00; B60B2380/10; B60B2380/14; B60B2900/00; B60B2900/50; B60B2900/531; B60Y; B60Y2200/00; B60Y2200/20; B60Y2200/22; B60Y2200/221; Y; Y10; Y10S; Y10S180/00; Y10S180/90
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) | 1944-09-01 | 1945-03-03 | 1945-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-09-01 | 1949-03-03 | 1949-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-09-01 | 1953-03-03 | 1953-09-02 | $7700.00 | Window Closed / Lapsed |