Patent EP0463233A2 successfully refreshed from Google Patents.
Patent US2607397A successfully refreshed from Google Patents.
US2607397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chair construction having a spring support
Assignee: Individual
•
Filing: 1948-09-25
•
Granted: 1952-08-19
•
Expires: 1968-09-25
Abstract
No abstract record available.
Inventors
- 👤 Schneider Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:05
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/02; A47C3/025; A47C3/0252
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |