US2986827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bulldozer for tandem push loading
Assignee: Caterpillar Inc
•
Filing: 1958-04-10
•
Granted: 1961-06-06
•
Expires: 1978-04-10
Abstract
No abstract record available.
Inventors
- 👤 Robert A Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:15
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/003; Y; Y10; Y10S; Y10S293/00; Y10S293/01; Y10S37/00; Y10S37/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |