Patent US121303A successfully refreshed from Google Patents.
US3533337A
Expired / Lapsed
US
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Slip form paving apparatus
Assignee: CMI Terex Corp
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Filing: 1968-03-04
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Granted: 1970-10-13
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Expires: 1988-03-04
Abstract
No abstract record available.
Inventors
- 👤 George W Swisher Jr
- 👤 Gordon L Spivey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:43
CPC Classifications
E; E01; E01C; E01C23/00; E01C23/04; E01C19/00; E01C19/004; E01C19/008; E01C19/22; E01C19/30; E01C19/34; E01C19/40; E01C19/405; E01C19/407
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-12 | 1974-04-13 | 1974-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-12 | 1978-04-13 | 1978-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-12 | 1982-04-13 | 1982-10-13 | $7700.00 | Window Closed / Lapsed |