US3106384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalt mixing plant dust return system
Assignee: Standard Steel Corp
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Filing: 1961-03-27
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Granted: 1963-10-08
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Expires: 1981-03-27
Abstract
No abstract record available.
Inventors
- 👤 Marvin B Preeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:35
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/02; E01C19/10; E01C19/1059; E01C19/1068; E01C19/1072
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
IN AN ASPHALT MIXING PLANT, THE COMBINATION OF: AN AGGREGATE DRIER; MIXING MEANS COMMUNICATING WITH SAID DRIER FOR PRODUCING AN AGGREGATE-ASPHALT MIX; DUST COLLECTING MEANS COMMUNICATING WITH SAID DRIER; DUST RETURN MEANS COMMUNICATING WITH SAID DUST COLLECTING MEANS AND SAID MIXING MEANS FOR ADDING DUST COLLECTED BY SAID DUST COLLECTING MEANS TO SAID AGGREGATE-ASPHALT
Claim 2
Dependent Claim
54 words
IN AN ASPHALT MIXING PLANT, THE COMBINATION OF: AN AGGREGATE DRIER; MIXING MEANS COMMUNICATING WITH SAID DRIER FOR PRODUCING AN AGGREGATE-ASPHALT MIX; DUST COLLECTING MEANS COMMUNICATING WITH SAID DRIER; DUST RETURN MEANS COMMUNICATING WITH SAID DUST COLLECTING MEANS AND SAID MIXING MEANS FOR ADDING DUST COLLECTED BY SAID DUST COLLECTING MEANS TO SAID AGGREGATE-ASPHALT
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |