US2744665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressurized container valve structure
Assignee: VIKING VALVE Co
•
Filing: 1951-06-16
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Granted: 1956-05-08
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Expires: 1971-06-16
Abstract
No abstract record available.
Inventors
- 👤 George E Carlson
- 👤 Bader John Parker
- 👤 Nathan B Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:08
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/44; B65D83/48; B65D83/16; B65D83/162
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US116433A
Cited
US2565954A
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US2506449A
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US2543850A
Cited
US2582262A
Cited
US2612293A
Cited
US2621973A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-08 | 1959-11-07 | 1960-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-08 | 1963-11-07 | 1964-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-08 | 1967-11-07 | 1968-05-08 | $7700.00 | Window Closed / Lapsed |