US3477152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control of earthmoving machinery
Assignee: RTX Corp
•
Filing: 1966-12-28
•
Granted: 1969-11-11
•
Expires: 1986-12-28
Abstract
No abstract record available.
Inventors
- 👤 Henry R Ask
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:25
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/64; E02F3/6454; E02F3/65; E02F3/651; E02F3/652; E02F3/654; E02F3/657
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2842108A
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US3039087A
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US3064371A
Cited
US3026638A
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US3046681A
Cited
US3063576A
Cited
US3060602A
Cited
US3175631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |