US2911070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor brake
Assignee: American Steel Foundries
•
Filing: 1956-04-20
•
Granted: 1959-11-03
•
Expires: 1976-04-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Albert F Seelig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:22
CPC Classifications
B; B61; B61H; B61H5/00; F; F16; F16D; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/2245; F16D2125/00; F16D2125/18; F16D2125/58; F16D2125/66
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US343680A
Cited
US1426628A
Cited
US2274860A
Cited
US2481127A
Cited
US2406201A
Cited
US2792082A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-02 | 1963-05-04 | 1963-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-02 | 1967-05-04 | 1967-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-02 | 1971-05-04 | 1971-11-03 | $7700.00 | Window Closed / Lapsed |