US1957805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ball joint for conduits
Assignee: Great Lakes Dredge and Dock Corp
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Filing: 1932-04-22
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Granted: 1934-05-08
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Expires: 1952-04-22
Abstract
No abstract record available.
Inventors
- 👤 Ben C Rich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:15
CPC Classifications
E; E02; E02F; E02F7/00; E02F7/10; F; F16; F16L; F16L33/00; F16L33/02; F16L33/12; E02F9/00; E02F9/20; E02F9/22; E02F9/2264; E02F9/2275; F16L37/00; F16L37/08; F16L37/12; F16L37/20; F16L37/50; F16L37/52
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) | 1937-05-07 | 1937-11-06 | 1938-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-05-07 | 1941-11-06 | 1942-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-05-07 | 1945-11-06 | 1946-05-08 | $7700.00 | Window Closed / Lapsed |