Patent US3608305A successfully refreshed from Google Patents.
US3608305A
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US
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Coordinated combined releasable day and date jumper mechanism for calendar timepieces
Assignee: FABRIQUE D'HORLOGERIE DE FONTAINEMELON SA
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Filing: 1970-03-31
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Granted: 1971-09-28
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Expires: 1990-03-31
Abstract
Abstract A CALENDAR TIMEPIECE HAS A TOOTHED DAY RING AND A STAR WHEEL CARRYING MEANS FOR INDICATING DAYS OF THE WEEK, AND COMPRISES A FIRST JUMPER LEVER URGED INTO ENGAGEMENT WITH THE TEETH OF THE DATE RING BY A JUMPER SPRING AND A PIVOTALLY MOUNTED SECOND JUMPER. THE SECOND JUMPER HAS AN ELASTICALLY DEFORMABLE FIRST ARM TERMINATING IN A JUMPER BEAK ENGAGING IN THE TEETH OF THE STAR WHEEL AND A SECOND ARM KINEMATICALLY SOLID WITH THE FIRST JUMPER LEVER.
Inventors
- 👤 Georges Bullat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:16
CPC Classifications
G; G04; G04B; G04B19/00; G04B19/24; G04B19/243; G04B19/247; G04B19/253; G04B19/25333; G04B19/25353; G04B19/25366
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |