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US3237984A
Expired / Lapsed
US
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Plastic connector plates for stacking chairs
Assignee: American Seating Co
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Filing: 1964-10-19
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Granted: 1966-03-01
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Expires: 1984-10-19
Abstract
No abstract record available.
Inventors
- 👤 Kenneth O Schneider
- 👤 Anthony B Muiderman
- 👤 Chester J Barecki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:59
CPC Classifications
A; A47; A47C; A47C1/00; A47C1/12; A47C1/124
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3123399A
Cited
US715976A
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US1378878A
Cited
US1851730A
Cited
US2346887A
Cited
US2997339A
Cited
US3111344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |