US2660723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the stabilization of ivory
Assignee: Individual
•
Filing: 1951-04-06
•
Granted: 1953-12-01
•
Expires: 1971-04-06
Abstract
No abstract record available.
Inventors
- 👤 Delamarre Emile Jules
- 👤 Brejoux Roger Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:03
CPC Classifications
F; F26; F26B; F26B15/00; F26B15/10; F26B15/12; F26B15/14; F26B3/00; F26B3/28; F26B3/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1053162A
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US1334840A
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US2007044A
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US2169772A
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US2391919A
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US2355459A
Cited
US2391195A
Cited
GB584168A
Cited
US2450590A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-30 | 1957-06-01 | 1957-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-30 | 1961-06-01 | 1961-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-30 | 1965-06-01 | 1965-12-01 | $7700.00 | Window Closed / Lapsed |