US1895991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Road building machine and method
Assignee: Individual
•
Filing: 1927-11-26
•
Granted: 1933-01-31
•
Expires: 1947-11-26
Abstract
No abstract record available.
Inventors
- 👤 John N Heltzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:45
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/48; E01C19/4866; E01C23/00; E01C23/02; E01C23/026; E01C23/04; E01C23/06; E01C23/09; E01C23/0906; E01C23/0926; E01C23/0933
Claims Analysis
Total Claims: 0
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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) | 1936-01-31 | 1936-08-01 | 1937-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-01-31 | 1940-08-01 | 1941-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-01-31 | 1944-08-01 | 1945-01-31 | $7700.00 | Window Closed / Lapsed |