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US2698520A
Expired / Lapsed
US
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Concrete pile joint
Assignee: PACIFIC UNION METAL Co
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Filing: 1952-08-04
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Granted: 1955-01-04
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Expires: 1972-08-04
Abstract
No abstract record available.
Inventors
- 👤 William H Lloyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:16
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/20; E04B1/21; E04B1/215; E02; E02D; E02D5/00; E02D5/22; E02D5/52; E02D5/523
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1079375A
Cited
US1936540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-03 | 1958-07-05 | 1959-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-03 | 1962-07-05 | 1963-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-03 | 1966-07-05 | 1967-01-04 | $7700.00 | Window Closed / Lapsed |