US2533155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine supporting assembly for business machines
Assignee: Underwood Corp
•
Filing: 1944-11-16
•
Granted: 1950-12-05
•
Expires: 1964-11-16
Abstract
No abstract record available.
Inventors
- 👤 Hacht William H Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:34
CPC Classifications
A; A47; A47B; A47B17/00; A47B17/03; A47B17/036
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2172605A
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US981979A
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US1892414A
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US1855782A
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US1849726A
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US1827128A
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US2133347A
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US2101230A
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US2220475A
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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) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |