Patent US3003746A successfully refreshed from Google Patents.
US3003746A
Expired / Lapsed
US
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Load lifting apparatus
Assignee: Individual
•
Filing: 1957-01-23
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Granted: 1961-10-10
•
Expires: 1977-01-23
Abstract
No abstract record available.
Inventors
- 👤 William W Gridley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:36
CPC Classifications
B; B66; B66F; B66F7/00; B66F7/06; B66F7/08; B66F7/0625; B66F7/065; B66F7/0666
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US187647A
Cited
US366365A
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US2734519A
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US636445A
Cited
US682083A
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US813830A
Cited
US1345564A
Cited
US1859830A
Cited
US1982642A
Cited
US2489056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |