US2644378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grooving and flexible form installing attachment for road paving machines
Assignee: Individual
•
Filing: 1948-10-18
•
Granted: 1953-07-07
•
Expires: 1968-10-18
Abstract
No abstract record available.
Inventors
- 👤 George T Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:56
CPC Classifications
E; E01; E01C; E01C23/00; E01C23/02; E01C23/026
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USRE17361E
Cited
US1946972A
Cited
US1982387A
Cited
US1980523A
Cited
US1996153A
Cited
US2112489A
Cited
US2354586A
Cited
US2403820A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |