Patent US2777540A successfully refreshed from Google Patents.
US2777540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake head mounting arrangement
Assignee: American Steel Foundries
•
Filing: 1951-01-12
•
Granted: 1957-01-15
•
Expires: 1971-01-12
Abstract
No abstract record available.
Inventors
- 👤 Fred E Bachman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:20
CPC Classifications
B; B61; B61H; B61H5/00; F; F16; F16D; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/2245
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US369461A
Cited
US573523A
Cited
US1199932A
Cited
US2004842A
Cited
US2291016A
Cited
US2380803A
Cited
US2355123A
Cited
US2438481A
Cited
US2380376A
Cited
US2359806A
Cited
US2431774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |