Patent US2647560A successfully refreshed from Google Patents.
US2647560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Posture chair and seat
Assignee: Individual
•
Filing: 1951-01-18
•
Granted: 1953-08-04
•
Expires: 1971-01-18
Abstract
No abstract record available.
Inventors
- 👤 William C Huebener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:52
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/02; B60N2/22; B60N2/23; B60N2/233; B60N2/04; B60N2/16; B60N2/18; B60N2/1807; B60N2/1842; B60N2/185; B60N2/1853; B60N2/75; B60N2/763; B60N2/767
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) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |