US3038267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bulldozer for heavy duty and ripping operations
Assignee: Caterpillar Inc
•
Filing: 1960-02-01
•
Granted: 1962-06-12
•
Expires: 1980-02-01
Abstract
No abstract record available.
Inventors
- 👤 Eugene L Helton
- 👤 William R Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:08
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/80; E02F3/815; E02F3/8152; E02F9/00; E02F9/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1398500A
Cited
US1843260A
Cited
US2446074A
Cited
US2485407A
Cited
US2817168A
Cited
US2718075A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |