US3490485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Effluent disposing system
Assignee: FREDERICK J MUNSON
•
Filing: 1967-08-11
•
Granted: 1970-01-20
•
Expires: 1987-08-11
Abstract
No abstract record available.
Inventors
- 👤 Frederick J Munson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 23:19
CPC Classifications
E; E03; E03F; E03F1/00; E03F1/002; C; C02; C02F; C02F1/00; C02F1/006; Y; Y10; Y10T; Y10T137/00; Y10T137/402
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US843926A
Cited
US1371144A
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US1643273A
Cited
US2382393A
Cited
US2536196A
Cited
US2692644A
Cited
US2795542A
Cited
US3375666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |