Patent US3975848A successfully refreshed from Google Patents.
US3975848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calendar
Assignee: Individual
•
Filing: 1974-05-17
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Granted: 1976-08-24
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Expires: 1994-05-17
Abstract
Abstract A calendar comprising a plurality of pages, a conforming ferromagnetic plate and ring fastening means located along one edge of the pages and the plate binding said pages and plate. The pages are flipped from one side of the plate to the other, and a magnetic indicator adapted to overlie the pages and be forced against the plate is provided. The pages are imprinted on one side with chronological indicia and arranged with respect to the plate so that they lie face up on one side of the plate and face down on the other side and with respect to each other in reverse order so that initially all of the printed pages lie face down and must be turned up sequentially to the latest page in chronological order.
Inventors
- 👤 Hans R. Schmid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:50
CPC Classifications
B; B42; B42D; B42D5/00; B42D5/04; B42D5/047; B42D5/041; G; G09; G09D; G09D3/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
162 words
A calendar comprising a plurality of coextensive sheet members, one of said members being a thin ferromagnetic plate of about 0.1 mm thickness, another of said members comprising a stiff non-metallic support and the remainder of said members being a plurality of pages having calendar indicia on only one side thereof, all of said sheet members being rotatably bound together in an integral assembly along one edge thereof by a ring fastener, said sheet members being arranged so that said plate lies between said support and said pages, said pages being arranged so that the calendar indicia lie in chronological sequence from said plate to said support, with the page having the earliest indicia contiguous to said plate, said pages being removable from said ring fastener and rotatable thereabout to present successive pages in chronological sequence contiguous to said plate, and a magnetic indicator movably lying against the earliest page in attraction with the ferromagnetic plate, to highlight a given date thereon.
Claim 2
Dependent Claim
162 words
A calendar comprising a plurality of coextensive sheet members, one of said members being a thin ferromagnetic plate of about 0.1 mm thickness, another of said members comprising a stiff non-metallic support and the remainder of said members being a plurality of pages having calendar indicia on only one side thereof, all of said sheet members being rotatably bound together in an integral assembly along one edge thereof by a ring fastener, said sheet members being arranged so that said plate lies between said support and said pages, said pages being arranged so that the calendar indicia lie in chronological sequence from said plate to said support, with the page having the earliest indicia contiguous to said plate, said pages being removable from said ring fastener and rotatable thereabout to present successive pages in chronological sequence contiguous to said plate, and a magnetic indicator movably lying against the earliest page in attraction with the ferromagnetic plate, to highlight a given date thereon.
Claim 3
Dependent Claim
16 words
The calendar according to claim 1 wherein said ring fastening means is a spiral ring binder.
Claim 4
Dependent Claim
20 words
The calendar according to claim 1 wherein said plate is coated with a non-ferrous material on at least one side.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-24 | 1980-02-23 | 1980-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-24 | 1984-02-23 | 1984-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-24 | 1988-02-23 | 1988-08-24 | $7700.00 | Window Closed / Lapsed |