US3012472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Eye testing apparatus
Assignee: Honeywell Safety Products USA Inc
•
Filing: 1959-02-26
•
Granted: 1961-12-12
•
Expires: 1979-02-26
Abstract
No abstract record available.
Inventors
- 👤 Feinberg Richard
- 👤 Reuel A Sherman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:29
CPC Classifications
A; A61; A61B; A61B3/00; A61B3/02; A61B3/028; A61B3/032
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2003806A
Cited
US2147957A
Cited
US2180652A
Cited
US2364793A
Cited
GB559794A
Cited
US2481582A
Cited
US2485272A
Cited
US2798408A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |