US2718665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic sealed valve
Assignee: W K M Manufacturing Co Inc
•
Filing: 1949-12-29
•
Granted: 1955-09-27
•
Expires: 1969-12-29
Abstract
No abstract record available.
Inventors
- 👤 Clade Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:22
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/04; F16K5/0457; F16K5/0485; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4358; Y10T137/4393; Y10T29/00; Y10T29/49; Y10T29/49405; Y10T29/49412; Y10T29/49416; Y10T29/49423; Y10T29/49826; Y10T29/49908; Y10T29/49938
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US240754A
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US322242A
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US767600A
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US874652A
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US1424094A
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US1650077A
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DE521655C
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US2263454A
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US2350905A
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US2394243A
Cited
US2456262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-26 | 1959-03-28 | 1959-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-26 | 1963-03-28 | 1963-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-26 | 1967-03-28 | 1967-09-27 | $7700.00 | Window Closed / Lapsed |