US2459520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of mixing bituminous materials with fillers
Assignee: Individual
•
Filing: 1944-08-22
•
Granted: 1949-01-18
•
Expires: 1964-08-22
Abstract
No abstract record available.
Inventors
- 👤 Bruce D Greenshields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:25
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/205; C08J3/2053; C08J3/2056; E; E01; E01C; E01C19/00; E01C19/02; E01C19/10; E01C19/1013; E01C19/1022; C08J2395/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE20119E
Cited
US1781105A
Cited
US1727231A
Cited
AU1358328A
Cited
US1854100A
Cited
GB470878A
Cited
US2125860A
Cited
US2372230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-18 | 1952-07-19 | 1953-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-18 | 1956-07-19 | 1957-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-18 | 1960-07-19 | 1961-01-18 | $7700.00 | Window Closed / Lapsed |