US3771308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Day-date timepiece advancing and correcting device
Assignee: ROAMER WATCH CO
•
Filing: 1973-02-15
•
Granted: 1973-11-13
•
Expires: 1993-02-15
Abstract
Abstract Day-date timepiece with unitary advancing pawls for day-date indicators with abutting means to lock one of the indicators with its respective pawl while the other indicator can be reset.
Inventors
- 👤 G Visconti
- 👤 T Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:07
CPC Classifications
G; G04; G04B; G04B19/00; G04B19/24; G04B19/243; G04B19/247; G04B19/253; G04B19/25333; G04B19/25373; G04B19/25386
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
81 words
Timepiece comprising two indicating members which are moved step by step, driven respectively by two pawls operating simultaneously and intermittently, and which act each on a toothing provided on each indicating member, a movable abutting member interposed between the two pawls, means for correcting the setting of either indicator, the abutting member moving towards one or the other pawl during a correction operation, the pawl it moves towards being locked in place while the other is released for the correction operation.
Claim 2
Dependent Claim
81 words
Timepiece comprising two indicating members which are moved step by step, driven respectively by two pawls operating simultaneously and intermittently, and which act each on a toothing provided on each indicating member, a movable abutting member interposed between the two pawls, means for correcting the setting of either indicator, the abutting member moving towards one or the other pawl during a correction operation, the pawl it moves towards being locked in place while the other is released for the correction operation.
Claim 3
Dependent Claim
19 words
Timepiece as claimed in claim 1, characterized by the fact that the two pawls are made of one piece.
Claim 4
Dependent Claim
35 words
Timepiece as claimed in claim 1, characterized by the fact that the two indicating members are coaxial to each other and are provided one with an outer toothing and the other with an inner toothing.
Claim 5
Dependent Claim
25 words
Timepiece as claimed in claim 1, characterized by the fact that the abutting member is constituted by an element hangedly mounted between the two pawls.
Claim 6
Dependent Claim
56 words
Timepiece as claimed in claim 4, characterized by the fact that the abutting member is an element of triangular shape articulated in the vicinity of one of its apexes, this triangular element cooperating with the pawls by means of its two sides which are adjacent to the apex in the vicinity of which it is articulated.
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) | 1976-11-12 | 1977-05-14 | 1977-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-12 | 1981-05-14 | 1981-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-12 | 1985-05-14 | 1985-11-13 | $7700.00 | Window Closed / Lapsed |