Patent US3832822A successfully refreshed from Google Patents.
Patent US3003816A successfully refreshed from Google Patents.
US3003816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tightener apparatus for removable cover of chair back or chair seat and the like
Assignee: Sturgis Posture Chair Co
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Filing: 1957-09-27
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Granted: 1961-10-10
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Expires: 1977-09-27
Abstract
No abstract record available.
Inventors
- 👤 Wilson James Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:55
CPC Classifications
A; A47; A47C; A47C31/00; A47C31/10; A47C31/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US358044A
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US656431A
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US1469523A
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US1566235A
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US1611329A
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DE515435C
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US2161448A
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US2229935A
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US2387428A
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US2436935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |