Patent US2575223A successfully refreshed from Google Patents.
Patent US2000273A successfully refreshed from Google Patents.
US2000273A
Expired / Lapsed
US
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Sheet piling mechanism
Assignee: Individual
•
Filing: 1929-02-13
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Granted: 1935-05-07
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Expires: 1949-02-13
Abstract
No abstract record available.
Inventors
- 👤 Homer S Hopkins
- 👤 John M Hover
- 👤 Savings Tarentum
- 👤 Company Trust
- 👤 Cox Catherine Conklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:10
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/26; B65H29/36; F; F27; F27D; F27D3/00; F27D3/0024; F27B; F27B9/00; F27B9/30; F27B9/38; F27B2009/384; F27B9/14; F27B9/20; F27B9/24; F27B9/2407; F27D2003/0001; F27D2003/0012; F27D2003/0013; F27D2003/0034; F27D2003/0059; F27D2003/006; F27D2003/0063; F27D3/12; F27D2003/124; F27D2003/125; F27M; F27M2001/00; F27M2001/15; F27M2001/1539; F27M2001/156; F27M2001/1565
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1938-05-06 | 1938-11-05 | 1939-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-05-06 | 1942-11-05 | 1943-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-05-06 | 1946-11-05 | 1947-05-07 | $7700.00 | Window Closed / Lapsed |