US2984026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Road-working machine
Assignee: THOMPSON SCOOP GRADER Inc
•
Filing: 1956-03-12
•
Granted: 1961-05-16
•
Expires: 1976-03-12
Abstract
No abstract record available.
Inventors
- 👤 William R Thompson
- 👤 Cyril E Saunders
- 👤 Donald E Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:46
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/64; E02F3/65; E02F3/653; E02F3/6454; E02F3/6472; E02F3/654; E02F3/656; E02F3/657; E02F3/659
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1834301A
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US2060369A
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US2140105A
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US2311639A
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US2577340A
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US2745328A
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US2686982A
Cited
US2799099A
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US2910790A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |