US2610557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic roller compactor
Assignee: WM BROS BOILER AND MANUFACTURING Co
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Filing: 1949-11-17
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Granted: 1952-09-16
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Expires: 1969-11-17
Abstract
No abstract record available.
Inventors
- 👤 Chester W Bros
- 👤 Archie O Williamson
- 👤 Ulyss O Guignard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:26
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)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-16 | 1956-03-17 | 1956-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-16 | 1960-03-17 | 1960-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-16 | 1964-03-17 | 1964-09-16 | $7700.00 | Window Closed / Lapsed |