US3446489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid distributors and redistributors for contact towers
Assignee: Individual
•
Filing: 1965-07-08
•
Granted: 1969-05-27
•
Expires: 1985-07-08
Abstract
No abstract record available.
Inventors
- 👤 Max Leva
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:58
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/008; F; F28; F28F; F28F25/00; F28F25/02; F28F25/04; Y; Y10; Y10S; Y10S261/00; Y10S261/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2006986A
Cited
US2428922A
Cited
US2575193A
Cited
US2571958A
Cited
US2939771A
Cited
US3163685A
Cited
US3235344A
Cited
US3259380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-26 | 1972-11-25 | 1973-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-26 | 1976-11-25 | 1977-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-26 | 1980-11-25 | 1981-05-27 | $7700.00 | Window Closed / Lapsed |