Patent US3131929A successfully refreshed from Google Patents.
US3131929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor
Assignee: Telefunken Patentverwertungs GmbH
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Filing: 1961-07-26
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Granted: 1964-05-05
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Expires: 1981-07-26
Abstract
No abstract record available.
Inventors
- 👤 Rehm Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:05
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/08; B65H3/12; B65H3/124; B65G; B65G21/00; B65G21/20; B65G21/2027; B65G21/2036; G; G06; G06K; G06K13/00; G06K13/02; G06K13/08; G06K13/10; G06K13/107; B65H2301/00; B65H2301/30; B65H2301/32; B65H2301/321
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A SUCTION TROUGH FOR USE WITH A SUCTION BELT WHICH RUNS PAST A TRANSFER ZONE, WHICH EXTENDS OVER THE TROUGH, AND WHICH HAS SUCTION OPENINGS, SAID TROUGH HAVING AT LEAST ONE ELONGATED SLOT EXTENDING IN THE DIRECTION IN WHICH SAID BELT RUNS, SAID SLOT THROUGHOUT A PORTION OF ITS LENGH BEING IN REGISTRY WITH SAID TRANSFER ZONE, THE WIDTH OF SAID SLOT, THROUGHOUT SAID PORTION, CORRESPONDING APPROXIMATELY TO THE WIDTH OF SAID SUCTION OPENINGS AND THE WIDTH OF THE REMAINDER OF SAID SLOT WHICH EXTENDS DOWNSTREAM OF SAID ZONE BEING SUBSTANTIALLY LESS THAN THE WIDTH OF SAID SUCTION OPENINGS.
Claim 2
Dependent Claim
99 words
A SUCTION TROUGH FOR USE WITH A SUCTION BELT WHICH RUNS PAST A TRANSFER ZONE, WHICH EXTENDS OVER THE TROUGH, AND WHICH HAS SUCTION OPENINGS, SAID TROUGH HAVING AT LEAST ONE ELONGATED SLOT EXTENDING IN THE DIRECTION IN WHICH SAID BELT RUNS, SAID SLOT THROUGHOUT A PORTION OF ITS LENGH BEING IN REGISTRY WITH SAID TRANSFER ZONE, THE WIDTH OF SAID SLOT, THROUGHOUT SAID PORTION, CORRESPONDING APPROXIMATELY TO THE WIDTH OF SAID SUCTION OPENINGS AND THE WIDTH OF THE REMAINDER OF SAID SLOT WHICH EXTENDS DOWNSTREAM OF SAID ZONE BEING SUBSTANTIALLY LESS THAN THE WIDTH OF SAID SUCTION OPENINGS.
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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |