US3429130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dam construction
Assignee: Strabag Bau AG
•
Filing: 1966-10-12
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Granted: 1969-02-25
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Expires: 1986-10-12
Abstract
No abstract record available.
Inventors
- 👤 Alfred Feiner
- 👤 Rudolf Hamann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:09
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/48; E01C19/4886; E01C19/4893; E01C19/4833; E01C19/4853; E02; E02B; E02B3/00; E02B3/04; E02B3/06; E02B7/00; E02B7/02; E02B7/04; E02B7/06; E02D; E02D19/00; E02D19/06; E02D19/12; E02D19/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |