US3564629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sleeping bags
Assignee: Nordiska Fjaderfabriken AB
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Filing: 1968-12-23
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Granted: 1971-02-23
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Expires: 1988-12-23
Abstract
Abstract A SLEEPING BAG COMPRISES TWO BAGS WHICH CAN BE PUT INTO AND WITHDRAWN AND DETACHED FROM ONE ANOTHER AND WHOSE THROUGH STITCHINGS ARE RELATIVELY OFFSET, THE BAGS WHEN INSERTED ONE INTO THE OTHER BEING SO TIGHTLY INTERCONNECTED THAT AN INSULATING AIR VOLUME IS ENCLOSED BETWEEN THE TWO BAGS.
Inventors
- 👤 Karl Alfred Sten Rogius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:01
CPC Classifications
A; A47; A47G; A47G9/00; A47G9/08; A47G9/086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |