Patent US3220764A successfully refreshed from Google Patents.
US3220764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding chair
Assignee: Individual
•
Filing: 1965-02-24
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Granted: 1965-11-30
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Expires: 1985-02-24
Abstract
No abstract record available.
Inventors
- 👤 Frederick L Duer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:12
CPC Classifications
A; A47; A47C; A47C4/00; A47C4/04; A47C4/18; A47C4/20; A47C4/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US210842A
Cited
US748956A
Cited
FR386891A
Cited
US1704712A
Cited
US2310521A
Cited
US2650653A
Cited
FR1188353A
Cited
US3141425A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |