US3433366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gantry cranes
Assignee: Southern Iron and Equipment Co
•
Filing: 1965-10-22
•
Granted: 1969-03-18
•
Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 James W Brazell
- 👤 James T Perkins Jr
- 👤 Edwin L White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:03
CPC Classifications
B; B66; B66C; B66C19/00; B66C19/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735713A
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US2936907A
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US2974757A
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US3051321A
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US3176853A
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US3190237A
Cited
US3262595A
Cited
US3247974A
Cited
US3262580A
Cited
US3252589A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |