US3029985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow control plunger
Assignee: G & K Machine Co Inc
•
Filing: 1959-02-24
•
Granted: 1962-04-17
•
Expires: 1979-02-24
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Krueger
- 👤 Elmer W Koplin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:34
CPC Classifications
G; G01; G01F; G01F11/00; G01F11/02; G01F11/021; G01F11/025; G01F11/026; B; B05; B05C; B05C17/00; B05C17/005; B05C17/00576; B05C17/01; B05C17/014
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2111582A
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US2428452A
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US2571486A
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US2815995A
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US2778541A
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US2923442A
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US2833451A
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US2886215A
Cited
US2855130A
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US2955728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |