US3423859A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Road construction methods and apparatus
Assignee: CONSTRUCTION MACHINERY Inc
•
Filing: 1965-04-07
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Granted: 1969-01-28
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Expires: 1985-04-07
Abstract
No abstract record available.
Inventors
- 👤 George W Swisher Jr
- 👤 Gordon L Spivey
- 👤 Adolph R Petersik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:31
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/20; E02F9/2025; E02F9/2045; B; B62; B62D; B62D55/00; B62D55/08; B62D55/084; B62D55/104; B62D55/116; E02F3/00; E02F3/04; E02F3/76; E02F3/78; E02F3/783; E02F3/80; E02F3/84; E02F3/841; E02F9/003; E02F9/02; E02F9/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1103242A
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US1904948A
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US2072150A
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US2114434A
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US2310930A
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US2304622A
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US3080196A
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US3230846A
Cited
US3257917A
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US3243193A
Cited
US3183016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |