US3280549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Release mechanism powered by water immerged expandable cartridge
Assignee: Individual
•
Filing: 1965-09-23
•
Granted: 1966-10-25
•
Expires: 1985-09-23
Abstract
No abstract record available.
Inventors
- 👤 Hsu Jui-Cheng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:04
CPC Classifications
B; B63; B63C; B63C9/00; B63C9/08; B63C9/20; F; F21; F21V; F21V23/00; F21V23/04; F21V23/0414
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A RELEASE MECHANISM CONTAINED WITHIN A CONTAINER BETWEEN A STATIONARY WALL AND A MOVABLE MEMBER COMPRISING A PLURALITY OF SEPARATE AUTOMATICALLY EXPANDABLE CARTRIDGES, SAID CARTRIDGES BEING IN ADJACENT ALIGNMENT RELATIVE TO ONE ANOTHER, AND SAID CARTRIDGES HAVING SELF CONTAINED MEANS TO EXPAND UPON CONTACT WITH WATER.
Claim 2
Dependent Claim
46 words
A RELEASE MECHANISM CONTAINED WITHIN A CONTAINER BETWEEN A STATIONARY WALL AND A MOVABLE MEMBER COMPRISING A PLURALITY OF SEPARATE AUTOMATICALLY EXPANDABLE CARTRIDGES, SAID CARTRIDGES BEING IN ADJACENT ALIGNMENT RELATIVE TO ONE ANOTHER, AND SAID CARTRIDGES HAVING SELF CONTAINED MEANS TO EXPAND UPON CONTACT WITH WATER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |