US2682567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Breaker mechanism for frangible ampule in deferred action battery
Assignee: United States Department of the Navy
•
Filing: 1944-02-05
•
Granted: 1954-06-29
•
Expires: 1964-02-05
Abstract
No abstract record available.
Inventors
- 👤 Henry H Porter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:04
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/30; H01M6/36; H01M6/38
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE305287C
Cited
US287924A
Cited
US1311678A
Cited
US823681A
Cited
GB526800A
Cited
US2403567A
Cited
US2336701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-28 | 1957-12-28 | 1958-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-28 | 1961-12-28 | 1962-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-28 | 1965-12-28 | 1966-06-29 | $7700.00 | Window Closed / Lapsed |