US2846981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-shut-off air bleed control valve and pneumatic actuating system employing same
Assignee: Tee Pak Inc
•
Filing: 1957-02-25
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Granted: 1958-08-12
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Expires: 1977-02-25
Abstract
No abstract record available.
Inventors
- 👤 Stanley F Kambic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:14
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/08; F16; F16K; F16K31/00; F16K31/12; F16K31/36; F15B2211/00; F15B2211/30; F15B2211/305; F15B2211/30525; F15B2211/355; F15B2211/60; F15B2211/635; F15B2211/6355; F15B2211/80; F15B2211/885; F15B2211/8855
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US599158A
Cited
GB189601059A
Cited
US713788A
Cited
US2176008A
Cited
US2268733A
Cited
US2573993A
Cited
US2607197A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |