US1726565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Excavating apparatus
Assignee: RAYMOND CONCRETE PILE CO
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Filing: 1926-04-26
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Granted: 1929-09-03
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Expires: 1946-04-26
Abstract
No abstract record available.
Inventors
- 👤 Francis H Hunt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:55
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/003; E21B7/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1932-09-02 | 1933-03-04 | 1933-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-09-02 | 1937-03-04 | 1937-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-09-02 | 1941-03-04 | 1941-09-03 | $7700.00 | Window Closed / Lapsed |