Patent US4853965A successfully refreshed from Google Patents.
US2336729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Excavating implement
Assignee: American Brake Shoe Co
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Filing: 1942-12-07
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Granted: 1943-12-14
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Expires: 1962-12-07
Abstract
No abstract record available.
Inventors
- 👤 Leonard T Harris
- 👤 Joseph P Murtaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:43
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/40
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) | 1946-12-13 | 1947-06-14 | 1947-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-12-13 | 1951-06-14 | 1951-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-12-13 | 1955-06-14 | 1955-12-14 | $7700.00 | Window Closed / Lapsed |