US2652222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible valve for dispensing apparatus and the like
Assignee: Individual
•
Filing: 1949-08-02
•
Granted: 1953-09-15
•
Expires: 1969-08-02
Abstract
No abstract record available.
Inventors
- 👤 David A Mccowan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:52
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/02; F16K7/04; F16K7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US48421A
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US86498A
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US143907A
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US729423A
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US1362686A
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US2006196A
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GB502094A
Cited
US2217050A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-14 | 1957-03-16 | 1957-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-14 | 1961-03-16 | 1961-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-14 | 1965-03-16 | 1965-09-15 | $7700.00 | Window Closed / Lapsed |