US3305138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for storing and distributing heated asphalt mix
Assignee: Individual
•
Filing: 1964-07-20
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Granted: 1967-02-21
•
Expires: 1984-07-20
Abstract
No abstract record available.
Inventors
- 👤 Charles C Plumb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:16
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/02; E01C19/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
101 words
IN APPARATUS FOR RECEIVING AND TEMPORARILY STORING A HOT MIX MATERIAL FOR USE AS A PAVING SURFACE AND THAT MUST BE DISPENSED IN A RELATIVELY FLUID STATE, A STORAGE CONTAINER INCLUDING AN OUTER HOUSING AND AN INNER HOUSING WITHIN SAID OUTER HOUSING AND SPACED THEREFROM TO DEFINE AN ANNULAR PASSAGEWAY THEREWITH, MEANS FOR INTRODUCING THE HOT MIX INTO SAID INNER HOUSING, MEANS FOR CIRCULATING A HEATED GASEOUS MEDIUM IN SAID ANNULAR PASSAGEWAY FOR MAINTAINING THE TEMPERATURE IN SAID INNER HOUSING AT A LEVEL SUFFICIENT TO RETAIN SAID HOT MIX IN SAID INNER HOUSING IN A FLUID STATE FOR POURING, MEANS LOCATED
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |