Patent EP0581279A2 successfully refreshed from Google Patents.
US1435618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roadway
Assignee: Individual
•
Filing: 1921-12-16
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Granted: 1922-11-14
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Expires: 1941-12-16
Abstract
No abstract record available.
Inventors
- 👤 Alfred T Newell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:05
CPC Classifications
E; E01; E01C; E01C5/00; E01C5/06; E01C5/08; E01C5/085
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) | 1925-11-13 | 1926-05-15 | 1926-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-11-13 | 1930-05-15 | 1930-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-11-13 | 1934-05-15 | 1934-11-14 | $7700.00 | Window Closed / Lapsed |