Patent US3135553A successfully refreshed from Google Patents.
US3135553A
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Chair construction
Assignee: HAMPDEN SPECIALTY PRODUCTS CORP
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Filing: 1962-11-02
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Granted: 1964-06-02
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Expires: 1982-11-02
Abstract
No abstract record available.
Inventors
- 👤 Samuel D Lockshin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:41
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/36; A47C7/40; A47B; A47B13/00; A47B13/08; A47B95/00; A47B95/04; A47B95/043; A47C7/02; A47C7/16; F; F16; F16B; F16B12/00; F16B12/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US853086A
Cited
US2182761A
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US2570326A
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DE912317C
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US2817485A
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US2942825A
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US3067438A
Cited
US3054643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |