Patent US2090634A successfully refreshed from Google Patents.
Patent US2516801A successfully refreshed from Google Patents.
US2516801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chair having spring supported seat
Assignee: Individual
•
Filing: 1944-03-16
•
Granted: 1950-07-25
•
Expires: 1964-03-16
Abstract
No abstract record available.
Inventors
- 👤 Harold E Renaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:58
CPC Classifications
A; A47; A47D; A47D1/00; A47D1/002; A47D1/004; A47D1/008; A47D1/0081; A47D1/0085; A47D13/00; A47D13/10; A47D13/107
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-24 | 1954-01-23 | 1954-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-24 | 1958-01-23 | 1958-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-24 | 1962-01-23 | 1962-07-25 | $7700.00 | Window Closed / Lapsed |