US2628664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chair on tracks
Assignee: Individual
•
Filing: 1950-01-20
•
Granted: 1953-02-17
•
Expires: 1970-01-20
Abstract
No abstract record available.
Inventors
- 👤 Thompson Frank
- 👤 Herbert E Rothenbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:34
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1123960A
Cited
US1379958A
Cited
US1473191A
Cited
US1713980A
Cited
US2024045A
Cited
US1903267A
Cited
US2278101A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |