Patent US3800525A successfully refreshed from Google Patents.
US3800525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid state watch with magnetic setting
Assignee: TIME COMPUTER
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Filing: 1973-08-07
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Granted: 1974-04-02
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Expires: 1993-08-07
Abstract
Abstract Disclosed is a solid state electronic wristwatch with no moving parts. The watch electronics are hermetically sealed in the watch case to be free of dust and moisture and the sealed components are resiliently mounted for improved shock resistance. Two setting switches and a demand switch within the casing are operated from outside the watch by permanent magnets, the demand magnet operating with a demand pushbutton. The setting magnet may be stored in the watch bracelet.
Inventors
- 👤 J Bergey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:55
CPC Classifications
G; G04; G04C; G04C3/00; G04C3/001; G04C3/004; G04B; G04B27/00; G04G; G04G9/00; G04G9/08; G04G9/10; G04G9/107
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
59 words
A wristwatch comprising a watch case of non-magnetic material, timekeeping means in said case including a electro optical digital time display and a magnetic field responsive switch for setting said display, said case including a recess adjacent said switch whereby said switch may be actuated by the insertion of a permanent magnet into said recess from outside said case.
Claim 2
Dependent Claim
59 words
A wristwatch comprising a watch case of non-magnetic material, timekeeping means in said case including a electro optical digital time display and a magnetic field responsive switch for setting said display, said case including a recess adjacent said switch whereby said switch may be actuated by the insertion of a permanent magnet into said recess from outside said case.
Claim 3
Dependent Claim
27 words
A wristwatch according to claim 1 including a second magnetic field responsive setting switch in said case, said case having a second recess adjacent said second switch.
Claim 4
Dependent Claim
35 words
A wristwatch according to claim 1 including a magnetic field responsive demand switch in said case for activating said display upon demand, and a permanent magnet movably mounted on said case adjacent said demand switch.
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) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |