US3212416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drain cover
Assignee: Individual
•
Filing: 1963-01-28
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Granted: 1965-10-19
•
Expires: 1983-01-28
Abstract
No abstract record available.
Inventors
- 👤 Donald J Boersma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:34
CPC Classifications
E; E03; E03F; E03F5/00; E03F5/04; E03F5/06; E03F2005/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A FLOOR DRAIN OF THE CHARACTER DESCRIBED COMPRISING A CYLINDRICAL DRAIN PIPE SET IN A FLOOR AND TERMINATING SUBSTANTIALLY FLUSH THEREWITH, A SLIGHTLY CONVEX CIRCULAR DISC REMOVABLY COVERING WITH DRAIN PIPE, SAID DISC BEING FORMED WITH A PLURALITY OF DRAINAGE OPENINGS, SAID DISC BEING OF LARGER DIAMETER THAN SAID DRAIN PIPE AND THE MARGINAL EDGE THEREOF ENGAGING THE TOP SURFACE OF SAID FLOOR, A PLURALITY OF ELONGATED WEEP HOLES FORMED IN SAID MARGINAL EDGE, AND A PLURALITY OF RESILIENT FINGERS STRUCK FROM SAID DISC AND DEPENDING THEREFROM, EACH OF SAID FINGERS TERMINATING IN A CRIMPED PORTION, SAID CRIMPED PORTIONS DEFINING A CIRCLE AND FRICTIONALLY ENGAGING THE INNER WALLS OF SAID DRAIN PIPE.
Claim 2
Dependent Claim
112 words
A FLOOR DRAIN OF THE CHARACTER DESCRIBED COMPRISING A CYLINDRICAL DRAIN PIPE SET IN A FLOOR AND TERMINATING SUBSTANTIALLY FLUSH THEREWITH, A SLIGHTLY CONVEX CIRCULAR DISC REMOVABLY COVERING WITH DRAIN PIPE, SAID DISC BEING FORMED WITH A PLURALITY OF DRAINAGE OPENINGS, SAID DISC BEING OF LARGER DIAMETER THAN SAID DRAIN PIPE AND THE MARGINAL EDGE THEREOF ENGAGING THE TOP SURFACE OF SAID FLOOR, A PLURALITY OF ELONGATED WEEP HOLES FORMED IN SAID MARGINAL EDGE, AND A PLURALITY OF RESILIENT FINGERS STRUCK FROM SAID DISC AND DEPENDING THEREFROM, EACH OF SAID FINGERS TERMINATING IN A CRIMPED PORTION, SAID CRIMPED PORTIONS DEFINING A CIRCLE AND FRICTIONALLY ENGAGING THE INNER WALLS OF SAID DRAIN PIPE.
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) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |