Patent US3450569A successfully refreshed from Google Patents.
US3450569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Primary cell
Assignee: United States Department of the Army
•
Filing: 1966-05-05
•
Granted: 1969-06-17
•
Expires: 1986-05-05
Abstract
No abstract record available.
Inventors
- 👤 Raymond E Dumas
- 👤 Harry L Williams Jr
- 👤 Donald B Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:37
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/04; H01M4/00; H01M4/02; H01M4/36; H01M4/38; H01M4/46; H01M6/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US350297A
Cited
US1425163A
Cited
US1484783A
Cited
US2936327A
Cited
US2993946A
Cited
US3258367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |