US2758575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ramming machines and derricks for the same
Assignee: Individual
•
Filing: 1950-12-05
•
Granted: 1956-08-14
•
Expires: 1970-12-05
Abstract
No abstract record available.
Inventors
- 👤 Wampach Aloyse Nicolas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:54
CPC Classifications
E; E02; E02D; E02D7/00; E02D7/02; E02D7/06; E02D7/12; E02D7/125; E02D7/14; E02D7/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
US2192091A
Cited
US2246701A
Cited
US2396627A
Cited
GB628016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-14 | 1960-02-13 | 1960-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-14 | 1964-02-13 | 1964-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-14 | 1968-02-13 | 1968-08-14 | $7700.00 | Window Closed / Lapsed |