Patent US2947181A successfully refreshed from Google Patents.
US2947181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resonant vibration exciter
Assignee: Chain Belt Co
•
Filing: 1953-01-16
•
Granted: 1960-08-02
•
Expires: 1973-01-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert M Carrier
- 👤 John M Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:09
CPC Classifications
B; B65; B65G; B65G27/00; B65G27/10; B65G27/28; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18064; Y10T74/18344
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1757392A
Cited
US1820239A
Cited
DE630002C
Cited
US2179442A
Cited
GB475638A
Cited
US2333435A
Cited
US2332600A
Cited
US2353492A
Cited
US2575143A
Cited
FR1027230A
Cited
US2636719A
Cited
DE828944C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |