US2374732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of paving
Assignee: Individual
•
Filing: 1942-10-26
•
Granted: 1945-05-01
•
Expires: 1962-10-26
Abstract
No abstract record available.
Inventors
- 👤 Richard R Colburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:24
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/12; E01C19/20; E01C19/205; E01C19/02; E01C19/10; E01C19/1013; E01C19/1022; E01C19/48; E01C19/4806; E01C19/4813; E01C2019/2055; E01C2019/207; E01C2019/208
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) | 1948-04-30 | 1948-10-30 | 1949-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-04-30 | 1952-10-30 | 1953-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-04-30 | 1956-10-30 | 1957-05-01 | $7700.00 | Window Closed / Lapsed |