US2430604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reclining spring supported back rest
Assignee: Individual
•
Filing: 1944-02-16
•
Granted: 1947-11-11
•
Expires: 1964-02-16
Abstract
No abstract record available.
Inventors
- 👤 John M Dorton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:26
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/36; A47C7/40; A47C7/44; A47C7/443; A47C1/00; A47C1/02; A47C1/022; A47C1/024; A47C1/026
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US951211A
Cited
US1188537A
Cited
US1187580A
Cited
US1219654A
Cited
US1711320A
Cited
US1711476A
Cited
US1767757A
Cited
US1905588A
Cited
FR713262A
Cited
US2009024A
Cited
US2043287A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-10 | 1951-05-12 | 1951-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-10 | 1955-05-12 | 1955-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-10 | 1959-05-12 | 1959-11-11 | $7700.00 | Window Closed / Lapsed |