US3693375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wrist band with high resistance to expansion and relatively low contractive force
Assignee: Individual
•
Filing: 1971-10-12
•
Granted: 1972-09-26
•
Expires: 1991-10-12
Abstract
Abstract An expansible wrist band having first and second telescoped sections with spring means for contracting said band on the wrist with low tension and means providing a high resistance to expansion of said band to maintain the band securely on the wrist.
Inventors
- 👤 Jens C Paulsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:08
CPC Classifications
A; A44; A44C; A44C5/00; A44C5/0053; A44C5/0069
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
122 words
An expansible band comprising first and second hollow telescoping sections, an elongated member extending into said sections and having one end secured to said first section, a spring extending into said sections having one end secured to said other section and its other end secured to said elongated member whereby to draw the first and second sections together to contract the band, first means mounted on one of said sections and second means mounted on said elongated member, said first and second means cooperating to provide low resistance for contraction of said band and a relatively high resistance to expansion of said band whereby the forces on contracting of said band are substantially less than the force required to expand the band.
Claim 2
Dependent Claim
122 words
An expansible band comprising first and second hollow telescoping sections, an elongated member extending into said sections and having one end secured to said first section, a spring extending into said sections having one end secured to said other section and its other end secured to said elongated member whereby to draw the first and second sections together to contract the band, first means mounted on one of said sections and second means mounted on said elongated member, said first and second means cooperating to provide low resistance for contraction of said band and a relatively high resistance to expansion of said band whereby the forces on contracting of said band are substantially less than the force required to expand the band.
Claim 3
Dependent Claim
33 words
An expansible band as in claim 1 wherein said elongated member comprises a flat member and said second means comprises upwardly resilient projections thereon, and wherein said first means cooperates with said projections.
Claim 4
Dependent Claim
41 words
An expansible band as in claim 2 wherein said first means comprises a rotatable member adapted to rotate into engagement with said projections when the band is expanded and is adapted to ride over said projections when the band is contracted.
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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |