Patent US1562291A successfully refreshed from Google Patents.
US1562291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roadway, paving block, and the like
Assignee: RUBACRETE Ltd
•
Filing: 1923-09-07
•
Granted: 1925-11-17
•
Expires: 1943-09-07
Abstract
No abstract record available.
Inventors
- 👤 Case Gerald Otley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:15
CPC Classifications
E; E01; E01C; E01C5/00; E01C5/22; E01C5/226; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24331; Y10T428/24339
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1928-11-16 | 1929-05-18 | 1929-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-11-16 | 1933-05-18 | 1933-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-11-16 | 1937-05-18 | 1937-11-17 | $7700.00 | Window Closed / Lapsed |