US2614020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shelf elevating mechanism and control
Assignee: Individual
•
Filing: 1949-06-07
•
Granted: 1952-10-14
•
Expires: 1969-06-07
Abstract
No abstract record available.
Inventors
- 👤 Collins Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:36
CPC Classifications
A; A47; A47B; A47B51/00; A47B2220/00; A47B2220/0002; A47B2220/0013
Claims Analysis
Total Claims: 0
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US2495046A
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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) | 1955-10-14 | 1956-04-14 | 1956-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-14 | 1960-04-14 | 1960-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-14 | 1964-04-14 | 1964-10-14 | $7700.00 | Window Closed / Lapsed |