US2442599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass magnetic stopcock
Assignee: United States Atomic Energy Commission
•
Filing: 1944-01-05
•
Granted: 1948-06-01
•
Expires: 1964-01-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Clifford E Herrick
- 👤 Laurence C Liberatore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:33
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0644; F16K31/0651; F16K31/0655
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US959609A
Cited
US1003068A
Cited
DE413627C
Cited
US1920925A
Cited
FR806223A
Cited
AT151789B
Cited
US2257582A
Cited
US2324642A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-01 | 1951-12-01 | 1952-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-01 | 1955-12-01 | 1956-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-01 | 1959-12-01 | 1960-06-01 | $7700.00 | Window Closed / Lapsed |