US2416501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ground boring device
Assignee: Individual
•
Filing: 1943-02-05
•
Granted: 1947-02-25
•
Expires: 1963-02-05
Abstract
No abstract record available.
Inventors
- 👤 Sundbergh Arne Ingemar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:52
CPC Classifications
E; E02; E02D; E02D1/00; E02D1/02; E02D1/022; Y; Y10; Y10T; Y10T24/00; Y10T24/39; Y10T24/3969
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1130076A
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US1298379A
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US1572534A
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US1689281A
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US1572048A
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US1562373A
Cited
US2033227A
Cited
US1937171A
Cited
US2080673A
Cited
US2330360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-24 | 1950-08-26 | 1951-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-24 | 1954-08-26 | 1955-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-24 | 1958-08-26 | 1959-02-25 | $7700.00 | Window Closed / Lapsed |