US3756614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller skates
Assignee: Individual
•
Filing: 1972-03-31
•
Granted: 1973-09-04
•
Expires: 1992-03-31
Abstract
Abstract A roller skate comprises a flat frame bar having a plurality of downwardly-opening recesses, each recess carrying a housing having a roller, the housing being open at the bottom through which the roller projects, each housing including a pair of mounting ears straddling the frame bar above its recess and fixed thereto by fasteners passing through the ears and the frame bar.
Inventors
- 👤 H Grubin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:32
CPC Classifications
A; A63; A63C; A63C17/00; A63C17/04; A63C17/06; A63C17/22; A63C17/226
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
103 words
A roller skate including a plurality of rollers to be rotatably mounted to the bottom of a shoe in alignment with the longitudinal axis thereof, characterised in that the roller skate includes a support in the form of a flat frame bar having a plurality of downwardly-opening recesses,each of said rollers being carried in a housing open at the bottom through which the roller projects, each housing being received within a recess of the frame bar and including a pair of mounting ears straddling the frame bar above its recess and fixed thereto by fasteners pasiing through the ears and the frame bar.
Claim 2
Dependent Claim
103 words
A roller skate including a plurality of rollers to be rotatably mounted to the bottom of a shoe in alignment with the longitudinal axis thereof, characterised in that the roller skate includes a support in the form of a flat frame bar having a plurality of downwardly-opening recesses,each of said rollers being carried in a housing open at the bottom through which the roller projects, each housing being received within a recess of the frame bar and including a pair of mounting ears straddling the frame bar above its recess and fixed thereto by fasteners pasiing through the ears and the frame bar.
Claim 3
Dependent Claim
60 words
A skate according to claim 1, wherein said frame bar is mounted to the shoe by a sole plate fixed to the sole of the shoe and by a heel plate fixed to the heel of the shoe, said frame bar including lugs formed along its upper edge received and fixed within slots formed in said sole and heel plates.
Claim 4
Dependent Claim
31 words
A skate according to claim 1, wherein each of said roller housings is formed with grooves in its side walls receiving the edges of the frame bar defining the respective recess.
Claim 5
Dependent Claim
20 words
A skate according to claim 1, wherein the outer peripheral surfaces of said rollers are made of hard plastics materials.
Claim 6
Dependent Claim
13 words
A skate according to claim 1, wherein the skate includes three equally-spaced rollers.
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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |