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US1737252A
Expired / Lapsed
US
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Operating structure for clamshell buckets
Assignee: Individual
•
Filing: 1927-10-03
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Granted: 1929-11-26
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Expires: 1947-10-03
Abstract
No abstract record available.
Inventors
- 👤 Tourneau Robert G Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:22
CPC Classifications
B; B66; B66C; B66C3/00; B66C3/14; B66C3/16; E; E02; E02F; E02F3/00; E02F3/04; E02F3/46; E02F3/47
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) | 1932-11-25 | 1933-05-27 | 1933-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-11-25 | 1937-05-27 | 1937-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-11-25 | 1941-05-27 | 1941-11-26 | $7700.00 | Window Closed / Lapsed |