US3473843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double purpose chair
Assignee: Individual
•
Filing: 1967-12-21
•
Granted: 1969-10-21
•
Expires: 1987-12-21
Abstract
No abstract record available.
Inventors
- 👤 Victor Reginald Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:35
CPC Classifications
A; A61; A61G; A61G5/00; A47; A47C; A47C13/00; A47C5/00; A47C5/04; A63; A63B; A63B22/00; A63B22/0076; A63B2022/0082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1727657A
Cited
US1979562A
Cited
US2690209A
Cited
US2724428A
Cited
US3137511A
Cited
US3266801A
Cited
US3378259A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |