US2873840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for handling pipe or the like
Assignee: United States Steel Corp
•
Filing: 1954-10-21
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Granted: 1959-02-17
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Expires: 1974-10-21
Abstract
No abstract record available.
Inventors
- 👤 David C Kerr
- 👤 Stanley K Kifer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:14
CPC Classifications
B; B65; B65G; B65G13/00; B65G13/11; B65G13/12; B65G47/00; B65G47/74; B65G47/76; B65G47/763; B65G2201/00; B65G2201/02; B65G2201/0276
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |