US3418789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic liquid discharge mechanism
Assignee: Norgren LLC
•
Filing: 1965-08-30
•
Granted: 1968-12-31
•
Expires: 1985-08-30
Abstract
No abstract record available.
Inventors
- 👤 Robert K Hoffman
- 👤 Jerry L Baldwin
- 👤 Dennis D Macfarlane
- 👤 Horst John Vander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:12
CPC Classifications
G; G05; G05D; G05D9/00; G05D9/02; F; F16; F16T; F16T1/00; F16T1/20; F16T1/22; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3021; Y10T137/304; Y10T137/3052; Y10T137/3068; Y10T137/3077; Y10T137/7287; Y10T137/7358; Y10T137/7423; Y10T137/7426; Y10T137/7433
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |