US2584919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulverent asphaltic composition
Assignee: Berry Asphalt Co
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Filing: 1949-06-28
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Granted: 1952-02-05
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Expires: 1969-06-28
Abstract
No abstract record available.
Inventors
- 👤 Harold B Pullar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:38
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A PULVERULENT STORAGE-STABLE ASPHALTIC COMPOSITION COMPOSED ESSENTIALLY OF FROM 25% TO 75% BY WEIGHT OF POWERED ASPHALT HAVING A PENETRATION OF LESS THAN ABOUT 5 AT 77* F. SUBSTANTIALLY ALL OF WHICH WILL PASS A 40 MESH SIEVE, AND FROM 25% TO 75% BY WEIGHT OF FINELY-DIVIDED BARIUM SULFATE SUBSTANTIALLY ALL OF WHICH PASSES A 325 MESH SIEVE.
Claim 2
Dependent Claim
58 words
A PULVERULENT STORAGE-STABLE ASPHALTIC COMPOSITION COMPOSED ESSENTIALLY OF FROM 25% TO 75% BY WEIGHT OF POWERED ASPHALT HAVING A PENETRATION OF LESS THAN ABOUT 5 AT 77* F. SUBSTANTIALLY ALL OF WHICH WILL PASS A 40 MESH SIEVE, AND FROM 25% TO 75% BY WEIGHT OF FINELY-DIVIDED BARIUM SULFATE SUBSTANTIALLY ALL OF WHICH PASSES A 325 MESH SIEVE.
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) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |