US2839848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic tilting blade controls for bulldozers
Assignee: Individual
•
Filing: 1957-08-16
•
Granted: 1958-06-24
•
Expires: 1977-08-16
Abstract
No abstract record available.
Inventors
- 👤 Theodore L Mackey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:15
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7609; E02F3/7618; Y; Y10; Y10S; Y10S116/00; Y10S116/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2681518A
Cited
US2678508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |