Patent US2509580A successfully refreshed from Google Patents.
US2509580A
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US
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Upholstered hassock
Assignee: Hettrick Manufacturing Co
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Filing: 1948-08-28
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Granted: 1950-05-30
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Expires: 1968-08-28
Abstract
No abstract record available.
Inventors
- 👤 Milton B Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:19
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/16; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/1051
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2265841A
Cited
US2485918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-29 | 1953-11-28 | 1954-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-29 | 1957-11-28 | 1958-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-29 | 1961-11-28 | 1962-05-30 | $7700.00 | Window Closed / Lapsed |