Patent JPS4871632A successfully refreshed from Google Patents.
US2490465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Earth anchor
Assignee: Individual
•
Filing: 1946-05-17
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Granted: 1949-12-06
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Expires: 1966-05-17
Abstract
No abstract record available.
Inventors
- 👤 Harley R Ogburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:34
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/74; E02D5/80; E02D5/803
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US915784A
Cited
US912018A
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US1606147A
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US1724341A
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US1778372A
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US1964610A
Cited
US1984268A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-05 | 1953-06-06 | 1953-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-05 | 1957-06-06 | 1957-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-05 | 1961-06-06 | 1961-12-06 | $7700.00 | Window Closed / Lapsed |