Patent US4033013A successfully refreshed from Google Patents.
US4033013A
Expired / Lapsed
US
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Flexible magnetic plastic strip closure
Assignee: Individual
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Filing: 1975-11-18
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Granted: 1977-07-05
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Expires: 1995-11-18
Abstract
Abstract A closure for a flexible case such as a brief case, purse or the like, wherein opposing flexible magnetic plastic strips border the opening or mouth of the case, the opposing strips being arranged to be of opposite polarity to develop an attraction force between them. Opposed opening tabs may be provided in such manner as to facilitate opening of the case without tendency to inadvertently remove the strip from its location of attachment, while corner clips effectively reinforce the upper corners of the case.
Inventors
- 👤 John Elwood Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:50
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/16; A; A45; A45C; A45C13/00; A45C13/10; A45C13/1069; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10T; Y10T24/00; Y10T24/32; Y10T292/00; Y10T292/11
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
215 words
A closure for a flexible case or the like having flexible side walls forming a mouth opening, a first strip of flexible magnetic tape, means securing said first strip of flexible magnetic tape to one of said flexible side walls, a second strip of similar length of such tape, means securing said second strip to said other side wall in position to be engaged by said first strip, said strips having opposite exposed polarities to effect a normal attraction of one for the other when in proximity to each other, and at least one opening tab extending at one end at least partially across the inner or exposable surface of one of said strips of flexible magnetic tape and, at its other end, extending beyond the proximate edge of said side walls, whereby application of finger pressure thereto to separate said strips and open said flexible case, will not strain said securing means wherein, said closure is characterized by a pair of opening tabs, each of said tabs being affixed at one ent to the inner or exposable surface of a different one said strips and extending upwaredly to a point above the proximate edges of said side walls, with both said openings tabs being located within a central region of the associated side walls.
Claim 2
Dependent Claim
215 words
A closure for a flexible case or the like having flexible side walls forming a mouth opening, a first strip of flexible magnetic tape, means securing said first strip of flexible magnetic tape to one of said flexible side walls, a second strip of similar length of such tape, means securing said second strip to said other side wall in position to be engaged by said first strip, said strips having opposite exposed polarities to effect a normal attraction of one for the other when in proximity to each other, and at least one opening tab extending at one end at least partially across the inner or exposable surface of one of said strips of flexible magnetic tape and, at its other end, extending beyond the proximate edge of said side walls, whereby application of finger pressure thereto to separate said strips and open said flexible case, will not strain said securing means wherein, said closure is characterized by a pair of opening tabs, each of said tabs being affixed at one ent to the inner or exposable surface of a different one said strips and extending upwaredly to a point above the proximate edges of said side walls, with both said openings tabs being located within a central region of the associated side walls.
Claim 3
Dependent Claim
19 words
A closure in accordance with claim 1, characterized by said tabs being slightly offset with respect to each other.
Claim 4
Dependent Claim
36 words
A closure in accordance with claim 2, characterized by said flexible magnetic strips terminating short of the ends of said side walls, and clips embracing proximate ends of said side walls at the upper corners thereof.
Claim 5
Dependent Claim
18 words
A closure in accordance with claim 1, characterized by said tabs being magnetically polarized and of opposite polarity.
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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) | 1980-07-04 | 1981-01-03 | 1981-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-04 | 1985-01-03 | 1985-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-04 | 1989-01-03 | 1989-07-05 | $7700.00 | Window Closed / Lapsed |