US3015175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Excavator
Assignee: Individual
•
Filing: 1959-07-10
•
Granted: 1962-01-02
•
Expires: 1979-07-10
Abstract
No abstract record available.
Inventors
- 👤 Robert D Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:00
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/08; E02F3/082; E02F3/086; E21; E21B; E21B11/00; E21B11/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1341138A
Cited
US1866037A
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US2187658A
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US2432107A
Cited
US2501083A
Cited
US2653795A
Cited
US2673407A
Cited
US2782534A
Cited
US2812191A
Cited
US2773612A
Cited
US2848246A
Cited
US2884721A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |