US3008450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum operating mechanism for a pumping and releasing system
Assignee: Werner Machinery Co
•
Filing: 1958-04-17
•
Granted: 1961-11-14
•
Expires: 1978-04-17
Abstract
No abstract record available.
Inventors
- 👤 Bruce W Brunson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:37
CPC Classifications
A; A01; A01J; A01J5/00; A01J5/04; A01J5/042; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/2937; Y10T137/2947; Y10T137/2965
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB584032A
Cited
US2829657A
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US2895450A
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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) | 1964-11-13 | 1965-05-15 | 1965-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-13 | 1969-05-15 | 1969-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-13 | 1973-05-15 | 1973-11-14 | $7700.00 | Window Closed / Lapsed |