US2748508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attachment for roadgrader gauges
Assignee: ROADGRADER GAUGE Corp
•
Filing: 1952-03-20
•
Granted: 1956-06-05
•
Expires: 1972-03-20
Abstract
No abstract record available.
Inventors
- 👤 Schiavi Vincent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:56
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US337361A
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US433433A
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US1265088A
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US1445608A
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US2184046A
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US2285039A
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US2277880A
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US2242486A
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US2467157A
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US2510523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |