US3635703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ornamental watch case
Assignee: GREGORY J PISSAREVSKY
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Filing: 1969-03-14
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Granted: 1972-01-18
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Expires: 1989-03-14
Abstract
Abstract An ornamental watch case is disclosed having unique properties of hardness and brilliance, permitting its functional use and its use as an ornament of jewelry. At the same time, the watch case is made of a cobalt chromium alloy which readily lends itself to precision casting at greatly lesser expense than the technique presently used for watch manufacture.
Inventors
- 👤 Gregory J Pissarevsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:13
CPC Classifications
G; G04; G04B; G04B37/00; G04B37/22; C; C22; C22C; C22C19/00; C22C19/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A watch case according to claim 1 wherein the composition of said alloy is approximately 60-65 percent cobalt; 20-30 percent chromium; balance molybdenum, manganese, and silicon.
Claim 2
Dependent Claim
40 words
A watch case according to claim 1 wherein the composition of said alloy is approximately 50 percent cobalt, 20 percent chromium, 15 percent tungsten, 10 percent nickel, balance of iron and manganese with impurities of carbon, silicon, phosphorous, and sulfur.
References Cited (Backward Citations)
US1958446A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |