Patent US5694554A successfully refreshed from Google Patents.
US3073036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for expanding polystyrene in piece form
Assignee: Individual
•
Filing: 1960-05-20
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Granted: 1963-01-15
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Expires: 1980-05-20
Abstract
No abstract record available.
Inventors
- 👤 Kostur J Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:15
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/3461; Y; Y10; Y10S; Y10S264/00; Y10S264/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A DEVICE FOR HEAT PROCESSING POLYSTYRENE IN PIECE FORM; A VERTICALLY EXTENDING HOUSING; AN INNER RECEPTACLE MOUNTED WITHIN SAID HOUSING AND HAVING A LOWER OPENING; AN ADJUSTABLE VALVE IN THE LOWER OPENING OF SAID RECEPTACLE; A METAL CASING BELOW SAID RECEPTACLE; ELECTRICAL HEATING ELEMENTS MOUNTED BELOW SAID RECEPTACLE; A PASSAGED FITTING COMMUNICATIVELY CONNECTING SAID VALVE AND SAID CASING; A THERMOSTAT MOUNTED IN SAID FITTING; A DRIVE BLOWER; PIPE MEANS CONNECTING SAID BLOWER AND SAID CASING; A HOPPER MOUNTED ABOVE SAID HOUSING; A VALVE IN THE LOWER PART OF SAID HOPPER; A DEPENDING DISCHARGE TUBE CONNECTED TO SAID HOPPER VALVE; A CURVED DEFLECTOR MOUNTED ABOVE THE PERIPHERY OF SAID RECEPTACLE;
Claim 2
Independent Claim
109 words
A DEVICE FOR HEAT PROCESSING POLYSTYRENE IN PIECE FORM; A VERTICALLY EXTENDING HOUSING; AN INNER RECEPTACLE MOUNTED WITHIN SAID HOUSING AND HAVING A LOWER OPENING; AN ADJUSTABLE VALVE IN THE LOWER OPENING OF SAID RECEPTACLE; A METAL CASING BELOW SAID RECEPTACLE; ELECTRICAL HEATING ELEMENTS MOUNTED BELOW SAID RECEPTACLE; A PASSAGED FITTING COMMUNICATIVELY CONNECTING SAID VALVE AND SAID CASING; A THERMOSTAT MOUNTED IN SAID FITTING; A DRIVE BLOWER; PIPE MEANS CONNECTING SAID BLOWER AND SAID CASING; A HOPPER MOUNTED ABOVE SAID HOUSING; A VALVE IN THE LOWER PART OF SAID HOPPER; A DEPENDING DISCHARGE TUBE CONNECTED TO SAID HOPPER VALVE; A CURVED DEFLECTOR MOUNTED ABOVE THE PERIPHERY OF SAID RECEPTACLE;
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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |