US2987786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ladle handler
Assignee: Whiting Corp
•
Filing: 1958-05-02
•
Granted: 1961-06-13
•
Expires: 1978-05-02
Abstract
No abstract record available.
Inventors
- 👤 Fred T Smith
- 👤 Edward T Dolin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:41
CPC Classifications
B; B66; B66C; B66C13/00; B66C2700/00; B66C2700/01; B66C2700/012; B66C2700/017
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1221390A
Cited
US1347006A
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US1848249A
Cited
US1890144A
Cited
US2227111A
Cited
US2220599A
Cited
US2336748A
Cited
US2844225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |