Patent US3173768A successfully refreshed from Google Patents.
US3173768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibratory apparatus for treating granular material
Assignee: Werkspoor NV
•
Filing: 1961-06-14
•
Granted: 1965-03-16
•
Expires: 1981-06-14
Abstract
No abstract record available.
Inventors
- 👤 Johan F Witte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:30
CPC Classifications
C; C13; C13B; C13B40/00; C13B40/002; F; F26; F26B; F26B17/00; F26B17/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
IN A VIBRATORY APPARATUS, IN COMBINATION, A MATERIAL RECEIVER THAT IS SUBJECTED TO VIBRATION HAVING AT LEAST A VERTICAL COMPONENET, SAID RECEIVER HAVING A BOTTOM PROVIDED WITH A PLURALITY OF APERTURES, AND AT LEAST ONE MEMBER OPERATIVELY CONNECTED TO SAID RECEIVER TO COVER SAID
Claim 2
Dependent Claim
44 words
IN A VIBRATORY APPARATUS, IN COMBINATION, A MATERIAL RECEIVER THAT IS SUBJECTED TO VIBRATION HAVING AT LEAST A VERTICAL COMPONENET, SAID RECEIVER HAVING A BOTTOM PROVIDED WITH A PLURALITY OF APERTURES, AND AT LEAST ONE MEMBER OPERATIVELY CONNECTED TO SAID RECEIVER TO COVER SAID
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) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |