Patent US3820179A successfully refreshed from Google Patents.
US3820179A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flotation sleeves
Assignee: STYROX SALES Pty Ltd
•
Filing: 1972-05-19
•
Granted: 1974-06-28
•
Expires: 1992-05-19
Abstract
Abstract AN INFLATABLE FLOTATION SLEEVE ADAPTED TO BE WORN ON THE UPPER ARM OF THE USER. IT INCLUDES AT LEAST ONE CONTINUOUS GENERALLY TUBULAR CLOSED STRUCTURE FORMED IN A FLUID IMPERVIOUS FLEXIBLE RESILIENT MATERIAL AND FLUID VALVE MEANS PROVIDING ACCESS TO THE STRUCTURE FOR INFLATION THEREOF. THE STRUCTURE IS ADAPTED TO SURROUND THE USER''S UPPER ARM AND INCLUDES A SUBSTANTIAL PORTION ADAPTED TO BE LOCATED ON THE ARM ADJACENT THE BODY, THIS PORTION BEING SHAPED SO AS TO SUBSTANTIALLY REDUCE ANY BODILY ENCUMBRANCE THEREBY.
Inventors
- 👤 K Maertin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:51
CPC Classifications
B; B63; B63C; B63C9/00; B63C9/08; B63C9/13; B63C9/15; B63C9/155; B63C2009/131
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |