Patent US3146295A successfully refreshed from Google Patents.
US3146295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ophthalmic mounting for a face mask
Assignee: Avox Systems Inc
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Filing: 1961-03-29
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Granted: 1964-08-25
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Expires: 1981-03-29
Abstract
No abstract record available.
Inventors
- 👤 Wesley J Roland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:19
CPC Classifications
G; G02; G02C; G02C3/00; G02C3/02; G02C9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US349018A
Cited
US404803A
Cited
US437030A
Cited
DE335128C
Cited
DE699153C
Cited
GB480600A
Cited
US2234729A
Cited
US2388713A
Cited
US2674158A
Cited
US2905172A
Cited
US2951418A
Cited
US3051957A
Cited
FR1248277A
Cited
US3004535A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |