US2931128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-toppling furniture extension leg
Assignee: Hamilton Manufacturing Co
•
Filing: 1957-09-16
•
Granted: 1960-04-05
•
Expires: 1977-09-16
Abstract
No abstract record available.
Inventors
- 👤 Victor H Hiers
- 👤 Claude G Kanzelberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:12
CPC Classifications
A; A47; A47B; A47B91/00; A47B91/02; A47B91/022; A47B91/024; A47C; A47C3/00; A47C3/20; A47C3/24; A47B2220/00; A47B2220/0027; A47B2220/003
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) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |