Patent US2997292A successfully refreshed from Google Patents.
US2997292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boat jack
Assignee: Auto Specialties Manufacturing Co
•
Filing: 1958-03-20
•
Granted: 1961-08-22
•
Expires: 1978-03-20
Abstract
No abstract record available.
Inventors
- 👤 Millard B Lucker
- 👤 Arthur C Achterberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:56
CPC Classifications
B; B63; B63C; B63C5/00; B63C5/02; B66; B66F; B66F3/00; B66F3/08; B66F3/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US160485A
Cited
US1029823A
Cited
US1101598A
Cited
US1453901A
Cited
US1559453A
Cited
US1782306A
Cited
US1969310A
Cited
US2610747A
Cited
US2785814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |