US3481610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal valve assembly
Assignee: Bowen Tools Inc
•
Filing: 1967-06-02
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Granted: 1969-12-02
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Expires: 1987-06-02
Abstract
No abstract record available.
Inventors
- 👤 Damon T Slator
- 👤 Albert L Burns Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:52
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/46; E; E21; E21B; E21B33/00; E21B33/02; E21B33/08; F16J15/16; F16J15/18; F16J15/24; Y; Y10; Y10S; Y10S277/00; Y10S277/906; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/88054
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) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |