US2610649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snap-action valve
Assignee: GEAR GRINDING MACH CO
•
Filing: 1949-04-18
•
Granted: 1952-09-16
•
Expires: 1969-04-18
Abstract
No abstract record available.
Inventors
- 👤 Brodhun John Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:27
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/44; F16K31/56; F16K31/563; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18856; Y10T74/18864
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1642141A
Cited
US1956520A
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US2084804A
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US1974310A
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US2075959A
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US2352815A
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US2431929A
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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) | 1955-09-16 | 1956-03-17 | 1956-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-16 | 1960-03-17 | 1960-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-16 | 1964-03-17 | 1964-09-16 | $7700.00 | Window Closed / Lapsed |