Patent US3012738A successfully refreshed from Google Patents.
US3012738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-borne vehicle
Assignee: Bertin Technologies SAS
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Filing: 1957-06-25
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Granted: 1961-12-12
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Expires: 1977-06-25
Abstract
No abstract record available.
Inventors
- 👤 Bertin Jean Henri
- 👤 Schmitt Henri Francois
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:49
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0041; B64C29/0075; B64C9/00; B64C9/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA522266A
Cited
FR805817A
Cited
US2377835A
Cited
US2451008A
Cited
US2601104A
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US2907536A
Cited
US2933266A
Cited
DE1025731B
Cited
US2922277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |