US2905288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expandible earth anchor
Assignee: Individual
•
Filing: 1954-12-22
•
Granted: 1959-09-22
•
Expires: 1974-12-22
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Runde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:20
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/74; E02D5/80; E02D5/805
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US289224A
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US460899A
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CA503811A
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US1675788A
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US2196206A
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US2530034A
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US2712865A
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US2799899A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |