US2881683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curb and pavement finishing machine
Assignee: Individual
•
Filing: 1954-11-26
•
Granted: 1959-04-14
•
Expires: 1974-11-26
Abstract
No abstract record available.
Inventors
- 👤 Robert J Konway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:31
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/22; E01C19/42; E01C19/12; E01C19/18; E01C19/185
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1388690A
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US1619083A
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US1760442A
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US1933377A
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US2219246A
Cited
US2187080A
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US2252188A
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US2373828A
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US2587321A
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US2650525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |