US2994435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter element
Assignee: Individual
•
Filing: 1958-05-26
•
Granted: 1961-08-01
•
Expires: 1978-05-26
Abstract
No abstract record available.
Inventors
- 👤 Laurence L Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:41
CPC Classifications
B; B01; B01D; B01D46/00; B01D46/24; B01D24/00; B01D24/02; B01D24/04; B01D24/042; B01D29/00; B01D29/11; B01D29/13; B01D29/15; B01D2201/00; B01D2201/04; B01D2201/0461; B01D2265/00; B01D2265/06; B01D2275/00; B01D2275/20; B01D2275/203
Claims Analysis
Total Claims: 0
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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) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |