Patent US3394980A successfully refreshed from Google Patents.
US3394980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectacles with adjustable length temples
Assignee: SAFEMASTER Inc
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Filing: 1964-06-11
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Granted: 1968-07-30
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Expires: 1984-06-11
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Dym
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:05
CPC Classifications
G; G02; G02C; G02C5/00; G02C5/14; G02C5/143; G02C5/12; G02C5/126; G02C5/20; G02C2200/00; G02C2200/04; G02C2200/08; G02C2200/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US766413A
Cited
US1099404A
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US1871183A
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US1925960A
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US2065935A
Cited
US2443249A
Cited
US2426266A
Cited
US2640391A
Cited
US3052161A
Cited
US3261652A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |