Patent US2486422A successfully refreshed from Google Patents.
US2486422A
Expired / Lapsed
US
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Combination longitudinal mechanical finishing machine and plane of weakness device for constructing pavements
Assignee: Individual
•
Filing: 1944-06-23
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Granted: 1949-11-01
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Expires: 1964-06-23
Abstract
No abstract record available.
Inventors
- 👤 Kies George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:57
CPC Classifications
E; E01; E01C; E01C23/00; E01C23/02; E01C23/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1946972A
Cited
US1982387A
Cited
US1778451A
Cited
US1750107A
Cited
US1996153A
Cited
US1977850A
Cited
US1974240A
Cited
US2098870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-31 | 1953-05-02 | 1953-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-31 | 1957-05-02 | 1957-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-31 | 1961-05-02 | 1961-11-01 | $7700.00 | Window Closed / Lapsed |