US3451234A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid separators
Assignee: Neil and Spencer Ltd
•
Filing: 1967-08-09
•
Granted: 1969-06-24
•
Expires: 1987-08-09
Abstract
No abstract record available.
Inventors
- 👤 James Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:40
CPC Classifications
D; D06; D06F; D06F43/00; D06F43/08; B; B01; B01D; B01D17/00; B01D17/02; B01D17/0208; B01D17/0214; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3006; Y10T137/8593; Y10T137/86187; Y10T137/86212
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2656696A
Cited
US3246493A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |