US3490724A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-legged stand
Assignee: Individual
•
Filing: 1968-08-05
•
Granted: 1970-01-20
•
Expires: 1988-08-05
Abstract
No abstract record available.
Inventors
- 👤 Kichitaro Ichikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:42
CPC Classifications
F; F16; F16M; F16M11/00; F16M11/02; F16M11/16; F16M11/04; F16M11/043; F16M11/046; F16M11/18; F16M11/20; F16M11/24; F16M11/242; F16M13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |