US3459331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas cartridge piercer and regulating valve
Assignee: BOC Group Ltd
•
Filing: 1968-02-28
•
Granted: 1969-08-05
•
Expires: 1988-02-28
Abstract
No abstract record available.
Inventors
- 👤 Christopher A Hogg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:22
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/30; F16K1/307; F17; F17C; F17C13/00; F17C13/04; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0323; F17C2205/0332; F17C2205/0382; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/612; Y10T137/6123
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1554348A
Cited
US3269598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |