Patent US2484226A successfully refreshed from Google Patents.
US2642215A
Expired / Lapsed
US
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Oscillating valve mechanism
Assignee: Individual
•
Filing: 1952-04-03
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Granted: 1953-06-16
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Expires: 1972-04-03
Abstract
No abstract record available.
Inventors
- 👤 Clarence F Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:33
CPC Classifications
B; B65; B65B; B65B1/00; B65B1/20; B65B1/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE23504E
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US2023824A
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US2070616A
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US2254642A
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US2538441A
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US2583966A
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US2540059A
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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) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |