US3241811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deep water sampling valve
Assignee: STANDARD POLYMER Inc
•
Filing: 1965-03-03
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Granted: 1966-03-22
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Expires: 1985-03-03
Abstract
No abstract record available.
Inventors
- 👤 Kenneth B Kilbourne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:54
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/12; F; F16; F16K; F16K31/00; F16K31/44; F16K31/46; F16K5/00; F16K5/06; F16K5/0647
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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |