Patent US2866573A successfully refreshed from Google Patents.
US2987975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic road roller
Assignee: Individual
•
Filing: 1956-06-05
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Granted: 1961-06-13
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Expires: 1976-06-05
Abstract
No abstract record available.
Inventors
- 👤 Harry J Seaman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:14
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)
US1337510A
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US1494881A
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US1748827A
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US2024184A
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US2199649A
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US2154497A
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US2213383A
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US2226182A
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US2510817A
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US2620235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |