US2426220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bituminous composition having increased adhesion to mineral aggregate
Assignee: Nostrip Inc
•
Filing: 1942-09-02
•
Granted: 1947-08-26
•
Expires: 1962-09-02
Abstract
No abstract record available.
Inventors
- 👤 James M Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:27
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1674523A
Cited
US1947951A
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US1969904A
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GB429548A
Cited
GB457810A
Cited
US2191295A
Cited
US2094609A
Cited
US2225189A
Cited
FR847829A
Cited
GB543625A
Cited
US2328551A
Cited
US2357917A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-25 | 1951-02-24 | 1951-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-25 | 1955-02-24 | 1955-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-25 | 1959-02-24 | 1959-08-26 | $7700.00 | Window Closed / Lapsed |