Patent US3443115A successfully refreshed from Google Patents.
US3443115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for paralleling direct current sources having different output characteristics
Assignee: Allis Chalmers Corp
•
Filing: 1966-06-15
•
Granted: 1969-05-06
•
Expires: 1986-06-15
Abstract
No abstract record available.
Inventors
- 👤 Julius W Timmerman Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:56
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/04; H01M8/04298; H01M8/04313; H01M8/04537; H01M8/04544; H01M8/04559; B; B60; B60L; B60L50/00; B60L50/50; B60L50/52; H01M16/00; H01M16/003; H01M16/006; H01M8/04567; H01M8/04694; H01M8/04955; H02; H02J; H02J7/00; H02J7/34; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02E60/30; Y02E60/50; Y02T; Y02T10/00; Y02T10/60; Y02T10/70
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1972-05-05 | 1972-11-04 | 1973-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-05 | 1976-11-04 | 1977-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-05 | 1980-11-04 | 1981-05-06 | $7700.00 | Window Closed / Lapsed |