US3515465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure sighting lens with relief port
Assignee: United States Department of the Navy
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Filing: 1967-06-28
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Granted: 1970-06-02
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Expires: 1987-06-28
Abstract
No abstract record available.
Inventors
- 👤 Richard J Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:06
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/56; G01N25/66; G02; G02B; G02B23/00; G02B23/16; G02B23/22; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8359
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) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |