Patent US2659087A successfully refreshed from Google Patents.
US2659087A
Expired / Lapsed
US
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Adjustable stilts
Assignee: Individual
•
Filing: 1951-03-19
•
Granted: 1953-11-17
•
Expires: 1971-03-19
Abstract
No abstract record available.
Inventors
- 👤 Robert P Skaggs
- 👤 Everett E Skaggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:44
CPC Classifications
A; A63; A63B; A63B25/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US398854A
Cited
US433365A
Cited
US1078962A
Cited
US1570307A
Cited
AT121583B
Cited
FR689076A
Cited
US2057913A
Cited
US2351145A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |