US2828676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for surface compacting soil, ground and similar granular materials
Assignee: Individual
•
Filing: 1953-07-31
•
Granted: 1958-04-01
•
Expires: 1973-07-31
Abstract
No abstract record available.
Inventors
- 👤 Steuerman Sergey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:55
CPC Classifications
E; E02; E02D; E02D3/00; E02D3/02; E02D3/046; E02D3/074
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2039078A
Cited
GB435590A
Cited
US2110413A
Cited
US2223024A
Cited
US2209656A
Cited
US2249264A
Cited
GB603972A
Cited
US2466822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |