US2789485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for spreading surfacing materials
Assignee: VIBRO PLUS CORP
•
Filing: 1952-02-20
•
Granted: 1957-04-23
•
Expires: 1972-02-20
Abstract
No abstract record available.
Inventors
- 👤 Lindgren Carl Gunnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:09
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/12; E01C19/18; E01C19/185
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB176200A
Cited
DE293745C
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US1084438A
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US1404747A
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US1724043A
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US2026241A
Cited
US1993657A
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US2035627A
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US2647651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |