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Patent US2705403A successfully refreshed from Google Patents.
US2705403A
Expired / Lapsed
US
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Caisson
Assignee: Individual
•
Filing: 1950-05-19
•
Granted: 1955-04-05
•
Expires: 1970-05-19
Abstract
No abstract record available.
Inventors
- 👤 Ebert Philipp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:32
CPC Classifications
E; E02; E02D; E02D27/00; E02D27/10; E02D27/18; E02D23/00; E02D23/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US137659A
Cited
US480127A
Cited
US511472A
Cited
GB189811268A
Cited
US670321A
Cited
US708249A
Cited
US910421A
Cited
US1665798A
Cited
US2101358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-04-04 | 1958-10-04 | 1959-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-04-04 | 1962-10-04 | 1963-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-04-04 | 1966-10-04 | 1967-04-05 | $7700.00 | Window Closed / Lapsed |