Patent US2867410A successfully refreshed from Google Patents.
US2867410A
Expired / Lapsed
US
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Bumper type vehicle lift attachment
Assignee: Blackhawk Manufacturing Co
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Filing: 1955-02-09
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Granted: 1959-01-06
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Expires: 1975-02-09
Abstract
No abstract record available.
Inventors
- 👤 Harold I Southerwick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:17
CPC Classifications
B; B66; B66F; B66F3/00; B66F3/24; B66F3/25; B66F3/36; B66F3/38; Y; Y10; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45969
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1470481A
Cited
US2476838A
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US2470018A
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US2549862A
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US2630297A
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US2529168A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |