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US2820343A
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Assignee: ANCIENS ETS CHARLES BERTHIEZ SA
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Filing: 1955-12-09
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Granted: 1958-01-21
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Expires: 1975-12-09
Abstract
No abstract record available.
Inventors
- 👤 Berthiez Frederick Cha Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:27
CPC Classifications
F; F16; F16C; F16C29/00; F16C29/10; B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/28; F15; F15B; F15B11/00; F15B11/16; F15B13/00; F15B13/01; F15B2211/00; F15B2211/40; F15B2211/405; F15B2211/40515; F15B2211/42; F15B2211/428; F15B2211/455; F15B2211/60; F15B2211/635; F15B2211/6355; F15B2211/70; F15B2211/71; F15B2211/7114; F15B2211/7128; F16C2322/00; F16C2322/39
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1054194A
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US1460586A
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US2022646A
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US2339728A
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US2490941A
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US2636579A
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FR1110907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-20 | 1961-07-22 | 1962-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-20 | 1965-07-22 | 1966-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-20 | 1969-07-22 | 1970-01-21 | $7700.00 | Window Closed / Lapsed |