Patent US2610323A successfully refreshed from Google Patents.
US2610323A
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Fage protective device
Assignee: American Optical Corp
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Filing: 1950-07-28
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Granted: 1952-09-16
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Expires: 1970-07-28
Abstract
No abstract record available.
Inventors
- 👤 Johnson John Oliver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:03
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/02; A61F9/025; A41; A41D; A41D13/00; A41D13/05; A41D13/11; A41D13/1184; Y; Y10; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/4588; Y10T24/45885
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) | 1955-09-16 | 1956-03-17 | 1956-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-16 | 1960-03-17 | 1960-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-16 | 1964-03-17 | 1964-09-16 | $7700.00 | Window Closed / Lapsed |