US2622876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for piling sheets
Assignee: United States Steel Corp
•
Filing: 1947-05-20
•
Granted: 1952-12-23
•
Expires: 1967-05-20
Abstract
No abstract record available.
Inventors
- 👤 Frederick K Schefe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:29
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/26; B65H29/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US281150A
Cited
US1808514A
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US1727209A
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US1750396A
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US2164371A
Cited
US2257469A
Cited
US2273689A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |