Patent US5672660A successfully refreshed from Google Patents.
US2474045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lifting jack
Assignee: Individual
•
Filing: 1946-02-21
•
Granted: 1949-06-21
•
Expires: 1966-02-21
Abstract
No abstract record available.
Inventors
- 👤 Harry D Freeland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:39
CPC Classifications
B; B66; B66F; B66F3/00; B66F3/08; B66F3/14; B66F3/16; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/20738
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US439647A
Cited
US850209A
Cited
US1175927A
Cited
US1457820A
Cited
US1580348A
Cited
US1912475A
Cited
US1918776A
Cited
US1999457A
Cited
US2107717A
Cited
US2126843A
Cited
US2170006A
Cited
US2221203A
Cited
US2294745A
Cited
US2324096A
Cited
US2351211A
Cited
US2341775A
Cited
US2415014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-20 | 1952-12-20 | 1953-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-20 | 1956-12-20 | 1957-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-20 | 1960-12-20 | 1961-06-21 | $7700.00 | Window Closed / Lapsed |