Patent US5374578A successfully refreshed from Google Patents.
Patent US4101104A successfully refreshed from Google Patents.
US4101104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Utility knob
Assignee: Lee Raymond Organization Inc
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Filing: 1976-12-14
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Granted: 1978-07-18
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Expires: 1996-12-14
Abstract
Abstract A knob which may be readily fastened to a flat surface for retention of a detachable litter bag. A shaft of circular cross-section is joined at one end to a first circular disc, concentric with the shaft, and at the other end to a second and smaller concentric circular disc. The external flat surface of the first disc is coated with a self-adhering material, with the edges of the second disc being rounded to permit the second disc to slide through a slotted hole in a tab of a litter bag.
Inventors
- 👤 Marguerite F. Minard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:18
CPC Classifications
A; A47; A47G; A47G1/00; A47G1/16; A47G1/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
A knob for mounting to a flat surface which serves as a hanger for a litter bag, said knob formed of a shaft joined at one shaft end to a first disc and to the opposed shaft end to a second circular disc, with the external surface of the first circular disc coated with a self-adhering plastic material, and with the external surfaces of the second circular disc formed as a continuous convex surface, said disc generally oriented along parallel planes together with a litter bag formed with a tab section, said tab section shaped with a circular hole of substantially the diameter of the diameter of the knob shaft, said hole intersected by a pair of opposed slots that extend a total distance of the general diameter of the second circular knob disc, with the width of each slot being substantially the maximum thickness of the said second circular knob disc, to permit the tab section of the litter bag to be readily detachably mounted to the knob.
Claim 2
Dependent Claim
169 words
A knob for mounting to a flat surface which serves as a hanger for a litter bag, said knob formed of a shaft joined at one shaft end to a first disc and to the opposed shaft end to a second circular disc, with the external surface of the first circular disc coated with a self-adhering plastic material, and with the external surfaces of the second circular disc formed as a continuous convex surface, said disc generally oriented along parallel planes together with a litter bag formed with a tab section, said tab section shaped with a circular hole of substantially the diameter of the diameter of the knob shaft, said hole intersected by a pair of opposed slots that extend a total distance of the general diameter of the second circular knob disc, with the width of each slot being substantially the maximum thickness of the said second circular knob disc, to permit the tab section of the litter bag to be readily detachably mounted to the knob.
References Cited (Backward Citations)
US2451194A
Cited
FR1391820A
Cited
US3300164A
Cited
US3255987A
Cited
US3300173A
Cited
US3273769A
Cited
US3616622A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-17 | 1982-01-16 | 1982-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-17 | 1986-01-16 | 1986-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-17 | 1990-01-16 | 1990-07-18 | $7700.00 | Window Closed / Lapsed |