US2883875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevator for tripod
Assignee: Individual
•
Filing: 1954-11-12
•
Granted: 1959-04-28
•
Expires: 1974-11-12
Abstract
No abstract record available.
Inventors
- 👤 Donald E Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:58
CPC Classifications
F; F16; F16M; F16M11/00; F16M11/20; F16M11/24; F16M11/26; F16M11/28; F16M11/02; F16M11/04; F16M11/06; F16M11/10; F16M11/18; F16M11/2007; F16M11/2014; F16M11/242; F16M2200/00; F16M2200/02; F16M2200/021; F16M2200/022; Y; Y10; Y10S; Y10S74/00; Y10S74/10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18088; Y10T74/18128; Y10T74/18136; Y10T74/19; Y10T74/19642; Y10T74/1967; Y10T74/19698; Y10T74/19819
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |