US2943541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compaction roller
Assignee: Individual
•
Filing: 1954-05-10
•
Granted: 1960-07-05
•
Expires: 1974-05-10
Abstract
No abstract record available.
Inventors
- 👤 Michael J Dunn
- 👤 Donald M Dunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:45
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/22; E01C19/23; E01C19/27
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US383807A
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DE8350C
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US976293A
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US1381816A
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US2159347A
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US2256594A
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US2266924A
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US2295645A
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US2407965A
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US2443147A
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US2624251A
Cited
US2610557A
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US2730935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |