US3239361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bituminous pavement
Assignee: Standard Oil Co
•
Filing: 1961-10-02
•
Granted: 1966-03-08
•
Expires: 1981-10-02
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Speer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:49
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/02; C08K3/04; C08K3/06; C08L; C08L95/00; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A BITUMINOUS PAVING COMPOSITION CONSISTING ESSENTIALLY OF AGGREGATE, A BITUMINOUS SUBSTANCE AS AGGREGATE BINDER, FINELY DIVIDED ELEMENTAL SULFUR IN THE RANGE OF FROM 0.6 TO 15% AND FINELY DIVIDED CARBON IN THE RANGE OF FROM 1.0 TO 20% BY WEIGHT BASED ON THE AGGREGATE WEIGHT WHEREIN SULFUR AND CARBON ARE ADDED AS POST MIX ADDITIVES TO THE MIXTURE OF AGGREGATE COATED WITH SAID AGGREGATE BINDER.
Claim 2
Dependent Claim
65 words
A BITUMINOUS PAVING COMPOSITION CONSISTING ESSENTIALLY OF AGGREGATE, A BITUMINOUS SUBSTANCE AS AGGREGATE BINDER, FINELY DIVIDED ELEMENTAL SULFUR IN THE RANGE OF FROM 0.6 TO 15% AND FINELY DIVIDED CARBON IN THE RANGE OF FROM 1.0 TO 20% BY WEIGHT BASED ON THE AGGREGATE WEIGHT WHEREIN SULFUR AND CARBON ARE ADDED AS POST MIX ADDITIVES TO THE MIXTURE OF AGGREGATE COATED WITH SAID AGGREGATE BINDER.
References Cited (Backward Citations)
US1830486A
Cited
US2640787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |