US2570046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Record cabinet
Assignee: Individual
•
Filing: 1947-07-17
•
Granted: 1951-10-02
•
Expires: 1967-07-17
Abstract
No abstract record available.
Inventors
- 👤 Charles W Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:31
CPC Classifications
A; A47; A47B; A47B81/00; A47B81/06; A47B81/067
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US989031A
Cited
US1069294A
Cited
US1349272A
Cited
US1429076A
Cited
US1621008A
Cited
US2079754A
Cited
US2513866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |