US3008435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bomb-proof structure
Assignee: Individual
•
Filing: 1957-12-27
•
Granted: 1961-11-14
•
Expires: 1977-12-27
Abstract
No abstract record available.
Inventors
- 👤 Dupuy Gaston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:21
CPC Classifications
E; E04; E04H; E04H9/00; E04H9/04; E04H9/10; E04B; E04B1/00; E04B1/343; E04B1/34363
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US719625A
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US1296688A
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US1567893A
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US1709914A
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US2853624A
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US2807727A
Cited
US2726339A
Cited
US2653468A
Cited
US2773459A
Cited
US2792794A
Cited
US2827004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-13 | 1965-05-15 | 1965-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-13 | 1969-05-15 | 1969-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-13 | 1973-05-15 | 1973-11-14 | $7700.00 | Window Closed / Lapsed |