US2589812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Work progress board
Assignee: Individual
•
Filing: 1949-05-26
•
Granted: 1952-03-18
•
Expires: 1969-05-26
Abstract
No abstract record available.
Inventors
- 👤 Maxwell D Hoskins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:05
CPC Classifications
G; G07; G07C; G07C3/00; G07C3/08; G07C3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US926386A
Cited
US1417928A
Cited
US1600358A
Cited
US1790127A
Cited
US2183183A
Cited
US2412238A
Cited
US2484058A
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 |