Patent US3121682A successfully refreshed from Google Patents.
US3121682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drain protector
Assignee: Individual
•
Filing: 1960-08-01
•
Granted: 1964-02-18
•
Expires: 1980-08-01
Abstract
No abstract record available.
Inventors
- 👤 Alice R Alberico
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:13
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/04; E04D13/0404; E04D13/0409; E03; E03F; E03F5/00; E03F5/04; E03F5/041; E03F5/0411; E04D2013/0413
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
IN A STORM DRAIN PROTECTOR, FRAME SHAPED TO SURROUND A DRAIN OPENING FORMED WITH A LEDGE IN ITS UPPER SURFACE AND A NOTCH, A COVERPLATE CLOSING OFF SAID OPENING AND FITTING WITHIN SAID LEDGE AND FORMED WITH A PLURALITY OF FIRST HOLES FOR DRAINAGE, A PAIR OF OPPOSITELY DISPOSED LUGS ON SAID PLATE, AT LEAST ONE OF SAID LUGS APERTURED, ONE SAID LUG FITTING IN SAID NOTCH, A FLAT SHEET METAL BASE HAVING A SHAPE SUBSTANTIALLY CONGRUENT TO SAID PLATE AND LYING FLAT ON TOP OF SAID PLATE, SAID BASE FORMED WITH A PLURALITY OF SECOND HOLES CORRESPONDING IN NUMBER AND POSITION TO SAID FIRST HOLES, A PAIR OF EARS PROJECTING OPPOSITELY FROM SAID BASE, ONE EAR EXTENDING INTO SAID NOTCH, A SCREW FITTING THROUGH THE OTHER SAID EAR AND SAID APERTURED LUG AND THREADED INTO SAID FRAME TO RETAIN SAID PLATE AND BASE IN POSITION, A PLURALITY OF FINGERS INTEGRAL
Claim 2
Dependent Claim
151 words
IN A STORM DRAIN PROTECTOR, FRAME SHAPED TO SURROUND A DRAIN OPENING FORMED WITH A LEDGE IN ITS UPPER SURFACE AND A NOTCH, A COVERPLATE CLOSING OFF SAID OPENING AND FITTING WITHIN SAID LEDGE AND FORMED WITH A PLURALITY OF FIRST HOLES FOR DRAINAGE, A PAIR OF OPPOSITELY DISPOSED LUGS ON SAID PLATE, AT LEAST ONE OF SAID LUGS APERTURED, ONE SAID LUG FITTING IN SAID NOTCH, A FLAT SHEET METAL BASE HAVING A SHAPE SUBSTANTIALLY CONGRUENT TO SAID PLATE AND LYING FLAT ON TOP OF SAID PLATE, SAID BASE FORMED WITH A PLURALITY OF SECOND HOLES CORRESPONDING IN NUMBER AND POSITION TO SAID FIRST HOLES, A PAIR OF EARS PROJECTING OPPOSITELY FROM SAID BASE, ONE EAR EXTENDING INTO SAID NOTCH, A SCREW FITTING THROUGH THE OTHER SAID EAR AND SAID APERTURED LUG AND THREADED INTO SAID FRAME TO RETAIN SAID PLATE AND BASE IN POSITION, A PLURALITY OF FINGERS INTEGRAL
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-17 | 1967-08-19 | 1968-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-17 | 1971-08-19 | 1972-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-17 | 1975-08-19 | 1976-02-18 | $7700.00 | Window Closed / Lapsed |