US3512875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable magnifier
Assignee: Jos Schneider Optische Werke GmbH
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Filing: 1968-07-02
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Granted: 1970-05-19
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Expires: 1988-07-02
Abstract
No abstract record available.
Inventors
- 👤 Gerard J Viollet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:17
CPC Classifications
G; G02; G02B; G02B25/00; G02B25/002; G02B25/005; B; B43; B43K; B43K29/00; B43K29/003; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3427; Y10T24/44; Y10T24/44641; Y10T24/44769; Y10T24/44906; Y10T24/44915
Claims Analysis
Total Claims: 0
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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) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |