US3109516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for successively immobilizing and rendering mobile a load displaceable within a conduit
Assignee: Electricite de France SA
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Filing: 1958-12-02
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Granted: 1963-11-05
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Expires: 1978-12-02
Abstract
No abstract record available.
Inventors
- 👤 Leo Bertrand
- 👤 Delpla Jean
- 👤 Pounhet Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:23
CPC Classifications
B; B66; B66F; B66F3/00; B66F3/24; B66F3/25; B66F3/30; G; G21; G21C; G21C19/00; G21C19/02; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S292/00; Y10S292/04; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1063; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20468; Y10T74/20576; Y10T74/20636; Y10T74/2066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-04 | 1967-05-06 | 1967-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-04 | 1971-05-06 | 1971-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-04 | 1975-05-06 | 1975-11-05 | $7700.00 | Window Closed / Lapsed |