Patent US5022667A successfully refreshed from Google Patents.
Patent US1323237A successfully refreshed from Google Patents.
US3447643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible one-way brake
Assignee: Ingersoll Rand Co
•
Filing: 1967-11-21
•
Granted: 1969-06-03
•
Expires: 1987-11-21
Abstract
No abstract record available.
Inventors
- 👤 Otmar M Ulbing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:20
CPC Classifications
F; F16; F16D; F16D63/00; B; B66; B66D; B66D5/00; F16D51/00; F16D51/02; F16D51/04; B66D2700/00; B66D2700/03; F16D2127/00; F16D2127/001; F16D2127/004; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/2066
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) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |