Patent US752481A successfully refreshed from Google Patents.
US3019918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hoist
Assignee: Individual
•
Filing: 1959-03-18
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Granted: 1962-02-06
•
Expires: 1979-03-18
Abstract
No abstract record available.
Inventors
- 👤 Keener Howard Nichols
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:41
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/18; B66C23/36; B66C2700/00; B66C2700/03; B66C2700/0321; B66C2700/0357; B66C2700/0364
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US878226A
Cited
FR482548A
Cited
US1391677A
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US1560071A
Cited
US2571858A
Cited
US2491357A
Cited
US2605002A
Cited
US2754976A
Cited
US2956690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |