Patent US2984028A successfully refreshed from Google Patents.
US2984028A
Expired / Lapsed
US
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Excavating bucket digging teeth
Assignee: RENNER Manufacturing Co
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Filing: 1958-07-28
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Granted: 1961-05-16
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Expires: 1978-07-28
Abstract
No abstract record available.
Inventors
- 👤 George O Renner
- 👤 Richard F Voelz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:15
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/28; E02F9/2808; E02F9/2816; E02F9/2833; E02F9/2841
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US923159A
Cited
US1433379A
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US1808311A
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US2702490A
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US2538083A
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US2674816A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |