US3454101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic circuit for automatic blade control for motor graders
Assignee: Caterpillar Inc
•
Filing: 1967-06-12
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Granted: 1969-07-08
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Expires: 1987-06-12
Abstract
No abstract record available.
Inventors
- 👤 William W Breitbarth
- 👤 John W Carter
- 👤 Philip J Costa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:38
CPC Classifications
F; F15; F15B; F15B9/00; F15B9/02; F15B9/03; E; E01; E01C; E01C19/00; E01C19/004; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/80; E02F3/84; E02F3/844; E02F3/845; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7761
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3026638A
Cited
US3229391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |