US2925103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve assembly
Assignee: KERR CHEMICALS Inc
•
Filing: 1956-11-23
•
Granted: 1960-02-16
•
Expires: 1976-11-23
Abstract
No abstract record available.
Inventors
- 👤 Robert J Kerr
- 👤 Edward H Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:20
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/28; B65D83/30; B65D83/306; B60; B60S; B60S5/00; B60S5/04; B60S5/043; B63; B63C; B63C9/00; B63C9/24; B65D83/75; B65D83/756; F; F16; F16K; F16K15/00; F16K15/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1197126A
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US1390283A
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GB238634A
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CH239535A
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US2565954A
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US2498596A
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US2557807A
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US2689768A
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US2730380A
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US2728509A
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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) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |