US3394419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Road construction
Assignee: Beteiligungs und Patentverwaltungs GmbH
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Filing: 1966-03-29
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Granted: 1968-07-30
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Expires: 1986-03-29
Abstract
No abstract record available.
Inventors
- 👤 Sedlacek Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:52
CPC Classifications
E; E01; E01D; E01D15/00; E01D15/12; E01D15/133
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189623639A
Cited
US1163641A
Cited
FR859175A
Cited
US3062340A
Cited
US3010128A
Cited
US3091313A
Cited
US3103025A
Cited
US3181187A
Cited
AT231499B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |