Patent US2960412A successfully refreshed from Google Patents.
US2960412A
Expired / Lapsed
US
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Concrete curing compound
Assignee: Pure Oil Co
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Filing: 1958-03-26
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Granted: 1960-11-15
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Expires: 1978-03-26
Abstract
No abstract record available.
Inventors
- 👤 George W Ayers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:44
CPC Classifications
C; C04; C04B; C04B40/00; C04B40/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A CONCRETE CURING COMPOUND CONSISTING ESSENTIALLY OF ABOUT 20-35 PARTS OF PETROLATUM EXHIBITING THE FOLLOWING PHYSICAL AND CHEMICAL CHARACTERISTICS: PROPERTY: VALUE MELTING POINT (*F.) ------------ 100-160 OIL CONTENT (PERCENT BY WT.) --- 10-25 C.O.C. FLASH (*F.) ------------- 500-590 C.O.C. FIRE (*F.) -------------- 580-640 VIS. SUS @ 210 F. -------------- 95-125 PENETRATION (77*F.) ------------ 100-135 AND ABOUT 80-65 PARTS OF MINERAL SPIRITS HAVING AN API GRAVITY OF BETWEEN ABOUT 40.0* TO 54.0*, INITIAL BOILING POINT OF ABOUT 300* TO 325*E., END BOILING POINT OF ABOUT 370* TO 410*F. AND AN ANILINE POINT OF BETWEEN ABOUT 100* TO 150*F.
Claim 2
Dependent Claim
97 words
A CONCRETE CURING COMPOUND CONSISTING ESSENTIALLY OF ABOUT 20-35 PARTS OF PETROLATUM EXHIBITING THE FOLLOWING PHYSICAL AND CHEMICAL CHARACTERISTICS: PROPERTY: VALUE MELTING POINT (*F.) ------------ 100-160 OIL CONTENT (PERCENT BY WT.) --- 10-25 C.O.C. FLASH (*F.) ------------- 500-590 C.O.C. FIRE (*F.) -------------- 580-640 VIS. SUS @ 210 F. -------------- 95-125 PENETRATION (77*F.) ------------ 100-135 AND ABOUT 80-65 PARTS OF MINERAL SPIRITS HAVING AN API GRAVITY OF BETWEEN ABOUT 40.0* TO 54.0*, INITIAL BOILING POINT OF ABOUT 300* TO 325*E., END BOILING POINT OF ABOUT 370* TO 410*F. AND AN ANILINE POINT OF BETWEEN ABOUT 100* TO 150*F.
References Cited (Backward Citations)
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Cited
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Cited
US2215551A
Cited
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Cited
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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) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |