Patent US2874971A successfully refreshed from Google Patents.
Patent US2474935A successfully refreshed from Google Patents.
US2474935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake mechanism
Assignee: Individual
•
Filing: 1946-02-20
•
Granted: 1949-07-05
•
Expires: 1966-02-20
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Elinsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:42
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/28; B26B19/32; G; G05; G05D; G05D13/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US150620A
Cited
US1059774A
Cited
US1199132A
Cited
US1404693A
Cited
US1510116A
Cited
US2125748A
Cited
US2123608A
Cited
US2273685A
Cited
US2244321A
Cited
US2287337A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-04 | 1953-01-03 | 1953-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-04 | 1957-01-03 | 1957-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-04 | 1961-01-03 | 1961-07-05 | $7700.00 | Window Closed / Lapsed |