Patent US2633947A successfully refreshed from Google Patents.
US2633947A
Expired / Lapsed
US
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Anchoring stake
Assignee: Individual
•
Filing: 1948-04-28
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Granted: 1953-04-07
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Expires: 1968-04-28
Abstract
No abstract record available.
Inventors
- 👤 Floyd F Schiff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:27
CPC Classifications
E; E04; E04H; E04H12/00; E04H12/22; E04H12/2207; E04H12/2215; E04H12/223; E04H17/00; E04H17/26; E04H17/261
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US716274A
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US856003A
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US954510A
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US1365857A
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US1436882A
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US1934900A
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US2098146A
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US2225765A
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US2243886A
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US2270325A
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US2366997A
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US2525316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |