Patent US2674024A successfully refreshed from Google Patents.
US2674024A
Expired / Lapsed
US
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Vault structure
Assignee: Individual
•
Filing: 1952-08-29
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Granted: 1954-04-06
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Expires: 1972-08-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Orestes Dioguardi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:21
CPC Classifications
E; E04; E04H; E04H13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US156522A
Cited
US849435A
Cited
GB190915155A
Cited
US1035987A
Cited
US1460409A
Cited
US1486384A
Cited
US1780171A
Cited
US1982672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |