US3254045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for manufacture of rubberized bitumen
Assignee: Goodyear Tire and Rubber Co
•
Filing: 1962-12-26
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Granted: 1966-05-31
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Expires: 1982-12-26
Abstract
No abstract record available.
Inventors
- 👤 Edward A Sinclair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:39
CPC Classifications
C; C08; C08L; C08L95/00; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A METHOD OF MANUFACTURING RUBBERIZED BITUMEN COMPRISING THE STEPS OF (1) INTRODUCING ELASTOMERIC LATEX INTO AN ENCLOSED MOVING BODY OF MOLTEN BITUMEN HAVING A TEMPERATURE SUFFICIENTLY HIGH TO EVAPORATE THE WATER, (2) MOVING THE RESULTANT MIXTURE IMMEDIATELY THROUGH AT LEAST ONE ZONE OF RESTRICTION OPNE TO THE ATMOSPHERE WHEREBY THE MOVEMENT OF THE RESULTANT BODY IS SPEEDED UP AND AT LEAST PART OF THE WATER IS RELEASED; (3) CONTINUING THE MOVEMENT OF THE RESULTANT BODY THROUGH AN ENCLOSED ZONE TO VAPORIZE THE REST OF THE WATER PRESENT IN THE BODY; AND
Claim 2
Independent Claim
91 words
A METHOD OF MANUFACTURING RUBBERIZED BITUMEN COMPRISING THE STEPS OF (1) INTRODUCING ELASTOMERIC LATEX INTO AN ENCLOSED MOVING BODY OF MOLTEN BITUMEN HAVING A TEMPERATURE SUFFICIENTLY HIGH TO EVAPORATE THE WATER, (2) MOVING THE RESULTANT MIXTURE IMMEDIATELY THROUGH AT LEAST ONE ZONE OF RESTRICTION OPNE TO THE ATMOSPHERE WHEREBY THE MOVEMENT OF THE RESULTANT BODY IS SPEEDED UP AND AT LEAST PART OF THE WATER IS RELEASED; (3) CONTINUING THE MOVEMENT OF THE RESULTANT BODY THROUGH AN ENCLOSED ZONE TO VAPORIZE THE REST OF THE WATER PRESENT IN THE BODY; AND
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) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |