US2661302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing dense compositions of asphalt and asbestos
Assignee: Texaco Inc
•
Filing: 1950-04-11
•
Granted: 1953-12-01
•
Expires: 1970-04-11
Abstract
No abstract record available.
Inventors
- 👤 John W Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:32
CPC Classifications
C; C04; C04B; C04B26/00; C04B26/02; C04B26/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A PROCESS FOR PREPARING DENSE PLASTIC COMPOSITIONS COMPRISING ASPHALT CUTBACK AND ASBESTOS FILLER WHICH COMPRISES ADDING VOLATILE THINNER CONTAINING A MINUTE PROPORTION OF A LIQUID LOWER DIALKYL SLICONE POLYMER TO ASPHALT TO FORM AN ASPHALT CUTBACK, ADDING ASBESTOS FILLER TO SAID ASPHALT CUTBACK AND SUBJECTING SAID SILICONE-CONTAINING MIXTURE OF ASPHALT CUTBACK AND ASBESTOS FILLER TO AGITATION AT ATMOSPHERIC TEMPERATURE WHEREBY AIR IS RAPIDLY RELEASED FROM SAID MIXTURE AND THERE IS FORMED A DENSE PLASTIC COMPOSITION COMPRISING ASPHALT CUTBACK AND ASBESTOS FILLER.
Claim 2
Dependent Claim
81 words
A PROCESS FOR PREPARING DENSE PLASTIC COMPOSITIONS COMPRISING ASPHALT CUTBACK AND ASBESTOS FILLER WHICH COMPRISES ADDING VOLATILE THINNER CONTAINING A MINUTE PROPORTION OF A LIQUID LOWER DIALKYL SLICONE POLYMER TO ASPHALT TO FORM AN ASPHALT CUTBACK, ADDING ASBESTOS FILLER TO SAID ASPHALT CUTBACK AND SUBJECTING SAID SILICONE-CONTAINING MIXTURE OF ASPHALT CUTBACK AND ASBESTOS FILLER TO AGITATION AT ATMOSPHERIC TEMPERATURE WHEREBY AIR IS RAPIDLY RELEASED FROM SAID MIXTURE AND THERE IS FORMED A DENSE PLASTIC COMPOSITION COMPRISING ASPHALT CUTBACK AND ASBESTOS FILLER.
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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) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |