Patent US3427938A successfully refreshed from Google Patents.
US3427938A
Expired / Lapsed
US
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Curb and gutter extruding machine
Assignee: Bas Equipment & Manufacturing Co Inc
•
Filing: 1967-02-02
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Granted: 1969-02-18
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Expires: 1987-02-02
Abstract
No abstract record available.
Inventors
- 👤 Byron F Handy Jr
- 👤 Allen R Handy
- 👤 Gregory S Handy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:16
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/48; E01C19/4886
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2049115A
Cited
US2707422A
Cited
US2932875A
Cited
US3175477A
Cited
US3137220A
Cited
US3292511A
Cited
US3318208A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |