Patent US3173550A successfully refreshed from Google Patents.
US3173550A
Expired / Lapsed
US
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Remote controlled crane
Assignee: Phillips Petroleum Co
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Filing: 1961-11-27
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Granted: 1965-03-16
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Expires: 1981-11-27
Abstract
No abstract record available.
Inventors
- 👤 John H Province
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:58
CPC Classifications
B; B66; B66C; B66C13/00; B66C13/18; B66C2700/00; B66C2700/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1064765A
Cited
US2254083A
Cited
US2643515A
Cited
US2786583A
Cited
US2961102A
Cited
US3051323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |