US4365433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nautical chart case
Assignee: Individual
•
Filing: 1981-06-29
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Granted: 1982-12-28
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Expires: 2001-06-29
Abstract
Abstract A waterproof chart case for retaining a plurality of separate charts in chosen sequence inside a roll-up cover. The separate charts are individually contained in waterproof holders which are in hinged, stacked relationship one relative to the other on the inner side of the cover. A separate closure means is used to retain each of the chart holders in place.
Inventors
- 👤 Calvin D. Buell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:42
CPC Classifications
G; G09; G09B; G09B29/00; G09B29/02; B; B42; B42F; B42F17/00; B42F17/18; B42F7/00; B42F7/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
85 words
A chart case for holding a plurality of separate charts, comprising: a flexible cover; a plurality of chart holders having transparent front portions and mounted on the inner side of said cover, each of said holders having a zipper type closure and opening means proximate one edge thereof; means including a separate zipper for securing said holders to said cover in hinged, stacked relationship one relative to the other; and means fixed to said cover for closing and retaining it in a closed roll-up position.
Claim 2
Dependent Claim
85 words
A chart case for holding a plurality of separate charts, comprising: a flexible cover; a plurality of chart holders having transparent front portions and mounted on the inner side of said cover, each of said holders having a zipper type closure and opening means proximate one edge thereof; means including a separate zipper for securing said holders to said cover in hinged, stacked relationship one relative to the other; and means fixed to said cover for closing and retaining it in a closed roll-up position.
Claim 3
Dependent Claim
28 words
The combination as set forth in claim 1 wherein said means for securing said holders to said cover in each case comprises a separating type zipper fastener device.
Claim 4
Dependent Claim
32 words
The combination as set forth in claim 1 wherein each of said holders includes a closure and opening means mounted proximate one edge thereof for inserting a chart in its respective holder.
Claim 5
Dependent Claim
16 words
The combination as set forth in claim 1 wherein said cover is of the naugehyde type.
Claim 6
Dependent Claim
22 words
The combination as set forth in claim 1 wherein said cover includes about its periphery a stitched marginal portion for reinforcing it.
Claim 7
Dependent Claim
34 words
The combination as set forth in claim 1 wherein said means for closing said cover and holding it securely in its closed condition comprises a plurality of opposed velcro bands mounted on said cover.
Claim 8
Dependent Claim
18 words
The combination as set forth in claim 1 wherein said holders each further include a back transparent portion.
References Cited (Backward Citations)
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Cited
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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) | 1985-12-27 | 1986-06-28 | 1986-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-27 | 1990-06-28 | 1990-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-27 | 1994-06-28 | 1994-12-28 | $7700.00 | Window Closed / Lapsed |