US2858749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Highway joint constructions
Assignee: Individual
•
Filing: 1954-08-19
•
Granted: 1958-11-04
•
Expires: 1974-08-19
Abstract
No abstract record available.
Inventors
- 👤 Alfred F Crone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:12
CPC Classifications
E; E01; E01C; E01C11/00; E01C11/02; E01C11/04; E01C11/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US824594A
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US2192571A
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US2323026A
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US2319050A
Cited
US2309767A
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US2531552A
Cited
US2608142A
Cited
US2521643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |