US2481970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Horizontally adjustable footrail
Assignee: Heywood Wakefield Co
•
Filing: 1945-10-29
•
Granted: 1949-09-13
•
Expires: 1965-10-29
Abstract
No abstract record available.
Inventors
- 👤 Alfred B Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:00
CPC Classifications
B; B61; B61D; B61D33/00; B61D33/0007; B61D33/005
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2543A
Cited
US155187A
Cited
US333659A
Cited
US390477A
Cited
US614666A
Cited
US926309A
Cited
US2185813A
Cited
US2257150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-12 | 1953-03-14 | 1953-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-12 | 1957-03-14 | 1957-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-12 | 1961-03-14 | 1961-09-13 | $7700.00 | Window Closed / Lapsed |