US2599444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for raising and transporting loads
Assignee: Humphreys and Glasgow Ltd
•
Filing: 1947-01-07
•
Granted: 1952-06-03
•
Expires: 1967-01-07
Abstract
No abstract record available.
Inventors
- 👤 Gavin Robert Chalmers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:04
CPC Classifications
B; B66; B66C; B66C7/00; B66C2700/00; B66C2700/01; B66C2700/012; B66C2700/018
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US473846A
Cited
US500936A
Cited
US985398A
Cited
US991217A
Cited
US1331780A
Cited
US1333948A
Cited
US2291387A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-03 | 1955-12-03 | 1956-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-03 | 1959-12-03 | 1960-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-03 | 1963-12-03 | 1964-06-03 | $7700.00 | Window Closed / Lapsed |