US2847916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for forming a combined curb and gutter strip in a continuous operation
Assignee: Individual
•
Filing: 1952-05-31
•
Granted: 1958-08-19
•
Expires: 1972-05-31
Abstract
No abstract record available.
Inventors
- 👤 Harold L Andrus
- 👤 Edward S Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:47
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/48; E01C19/4886; B; B28; B28B; B28B1/00; B28B1/08; B28B1/084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1985220A
Cited
US2077356A
Cited
US2138828A
Cited
US2225015A
Cited
US2180198A
Cited
US2297978A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |