US2851904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grader blade lifting link
Assignee: Individual
•
Filing: 1954-11-12
•
Granted: 1958-09-16
•
Expires: 1974-11-12
Abstract
No abstract record available.
Inventors
- 👤 Albert A Banek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:02
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/80; E02F3/815; E02F3/8157; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2144; Y10T74/2147
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US620164A
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US643240A
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US957315A
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FR412338A
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US1395971A
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US1504490A
Cited
US1511173A
Cited
US1630199A
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US2090246A
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US2323352A
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US2471244A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |