Patent US2588349A successfully refreshed from Google Patents.
Patent US2238708A successfully refreshed from Google Patents.
US2238708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Base supporting an upright member
Assignee: Individual
•
Filing: 1940-04-26
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Granted: 1941-04-15
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Expires: 1960-04-26
Abstract
No abstract record available.
Inventors
- 👤 Alfred R Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:06
CPC Classifications
F; F16; F16M; F16M11/00; F16M11/20; F16M11/24; F16M11/26; F16M11/28; F16M11/30; F16M11/02; F16M11/04; F16M11/06; F16M11/10; F16M11/105; F16M11/2007; F16M11/2035; F16M11/2057; F16M11/242
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-04-14 | 1944-10-14 | 1945-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-04-14 | 1948-10-14 | 1949-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-04-14 | 1952-10-14 | 1953-04-15 | $7700.00 | Window Closed / Lapsed |