US2528433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable folding seat
Assignee: W B HINES RES AND DEV CORP
•
Filing: 1946-01-12
•
Granted: 1950-10-31
•
Expires: 1966-01-12
Abstract
No abstract record available.
Inventors
- 👤 Willis B Hines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:38
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US64044A
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US1306306A
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US672683A
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US865327A
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US1293778A
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US1767099A
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US1900486A
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US1904388A
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US1963708A
Cited
US2005972A
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US2090562A
Cited
US2061054A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |