US2589954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lifting apparatus
Assignee: Individual
•
Filing: 1949-10-15
•
Granted: 1952-03-18
•
Expires: 1969-10-15
Abstract
No abstract record available.
Inventors
- 👤 William P Neil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:26
CPC Classifications
E; E04; E04G; E04G21/00; E04G21/14; E04G21/16; B; B66; B66C; B66C1/00; B66C1/10; B66C1/22; B66C1/24; B66C1/62; B66C1/66; B66C1/666; E04G21/167; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49828; Y10T29/49904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1476050A
Cited
US2412488A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |