US3245540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sand filter distributor nozzle
Assignee: Eimco Corp
•
Filing: 1964-08-05
•
Granted: 1966-04-12
•
Expires: 1984-08-05
Abstract
No abstract record available.
Inventors
- 👤 William H Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:20
CPC Classifications
B; B01; B01D; B01D24/00; B01D24/02; B01D24/10; B01D24/12; B01D24/20; B01D24/26; B01D24/263; B01D24/38; B01D24/42; B01D24/46; B01D24/4626
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A NOZZLE FOR USE IN SAND BED FILTERING APPARATUS COMPRISING A HOLLOW INNER BODY HAVING A WALL PORTION AND CLOSED BOTTOM PORTION, A DISCHARGE OUTLET IN SAID BOTTOM POTION, A COVER GENERALLY CO-EXTENSIVE IN AREA AND SHAPE WITH SAID INNER MEMBER, A PLURALITY OF IDENTICAL SYMMETRICALLY SPACED ALIGNED APERTURES IN THE WALL PORTIONS OF SAID INNER BODY AND COVER, A FLEXIBLE SCREEN BETWEEN THE WALL PORTIONS OF SAID INNER BODY AND COVER AND MEANS SECURING SAID INNER BODY TO SAID COVER.
Claim 2
Dependent Claim
81 words
A NOZZLE FOR USE IN SAND BED FILTERING APPARATUS COMPRISING A HOLLOW INNER BODY HAVING A WALL PORTION AND CLOSED BOTTOM PORTION, A DISCHARGE OUTLET IN SAID BOTTOM POTION, A COVER GENERALLY CO-EXTENSIVE IN AREA AND SHAPE WITH SAID INNER MEMBER, A PLURALITY OF IDENTICAL SYMMETRICALLY SPACED ALIGNED APERTURES IN THE WALL PORTIONS OF SAID INNER BODY AND COVER, A FLEXIBLE SCREEN BETWEEN THE WALL PORTIONS OF SAID INNER BODY AND COVER AND MEANS SECURING SAID INNER BODY TO SAID COVER.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |