US2575247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed joint for concrete slab road pavement
Assignee: Individual
•
Filing: 1946-05-18
•
Granted: 1951-11-13
•
Expires: 1966-05-18
Abstract
No abstract record available.
Inventors
- 👤 John E Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:23
CPC Classifications
E; E01; E01C; E01C11/00; E01C11/02; E01C11/04; E01C11/14
Claims Analysis
Total Claims: 0
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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) | 1954-11-12 | 1955-05-14 | 1955-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-12 | 1959-05-14 | 1959-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-12 | 1963-05-14 | 1963-11-13 | $7700.00 | Window Closed / Lapsed |