US2437806A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transporting equipment
Assignee: Individual
•
Filing: 1944-11-30
•
Granted: 1948-03-16
•
Expires: 1964-11-30
Abstract
No abstract record available.
Inventors
- 👤 George R Dempster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:18
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B60; B60P; B60P1/00; B60P1/44; B60P1/4414; B60P1/4421
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-16 | 1951-09-15 | 1952-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-16 | 1955-09-15 | 1956-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-16 | 1959-09-15 | 1960-03-16 | $7700.00 | Window Closed / Lapsed |